CVE-2025-34434

CRITICALPre-NVD 9.39.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 9.3 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.5% (40th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 9.1 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2025-12-17) is not newer than that change (2026-06-23), so it does not.

Triggered by: Headline CVSS from the CNA's CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory

Also known asEUVD-2025-203951 (ENISA EUVD) · GHSA-pjv2-vrgg-p8qv (GitHub Security Advisories)Source: ENISA EUVD

9.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

AVideo versions prior to 20.1 with the ImageGallery plugin enabled is vulnerable to unauthenticated file upload and deletion. Plugin endpoints responsible for managing gallery images fail to enforce authentication checks and do not validate ownership, allowing unauthenticated attackers to upload or delete images associated with any image-based video.

CVSS
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
57
EG Risk 57/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity93% × 45%
Impact severity (EG Severity): CVSS 9.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
40th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.3): severity, escalated by confirmed exploitation. This CVE's 9.3 is its impact severity (EG Severity), not escalated.

EG Severity
9.3 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.the CNA's CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-13). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

December 17, 2025

Last Modified

June 23, 2026

Advisory Details (4)

Auto-updated Oct 8, 2026
Patch available. Sources: github_commit.
Web page

From Zero to Shell: Hunting Critical Vulnerabilities in AVideo - Chocapikk's Cybersecurity Blog

https://chocapikk.com/posts/2025/avideo-security-vulnerabilities/
Web page

AVideo < 20.1 ImageGallery Plugin Unauthenticated File Upload and Deletion | Advisories | VulnCheck

https://www.vulncheck.com/advisories/avideo-imagegallery-plugin-unauthenticated-file-upload-and-deletion
GitHub commit Patch Available

commit c279999cbd (WWBN/AVideo)

Patch available: WWBN/AVideo 21.0 (contains commit c279999cbd)

https://github.com/WWBN/AVideo/commit/c279999cbd
GitHub commit Patch Available

commit 4a53ab2056 (WWBN/AVideo)

Patch available: WWBN/AVideo 21.0 (contains commit 4a53ab2056)

https://github.com/WWBN/AVideo/commit/4a53ab2056

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 57× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 264 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 164 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 19:53 UTCEchelonGraph re-scored
  2. 2026-11-13 19:53 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-13 16:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  4. 2026-11-12 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  5. 2026-11-12 16:13 UTCEchelonGraph re-scored
  6. 2026-11-12 16:13 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  7. 2026-11-11 16:36 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  8. 2026-11-11 13:45 UTCEchelonGraph re-scored
  9. 2026-11-11 13:45 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  10. 2026-11-10 16:40 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-11-10 11:23 UTCEchelonGraph re-scored
  12. 2026-11-10 11:23 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  13. 2026-11-09 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  14. 2026-11-09 09:02 UTCEchelonGraph re-scored
  15. 2026-11-09 09:02 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  16. 2026-11-08 16:37 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-11-08 06:41 UTCEchelonGraph re-scored
  18. 2026-11-08 06:41 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  19. 2026-11-07 16:36 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-11-07 04:19 UTCEchelonGraph re-scored
  21. 2026-11-07 04:19 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  22. 2026-11-06 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-11-06 01:52 UTCEchelonGraph re-scored
  24. 2026-11-06 01:52 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-11-05 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
Show 75 more
  1. 2026-11-05 12:25 UTCOSV refresh
  2. 2026-11-04 23:31 UTCEchelonGraph re-scored
  3. 2026-11-04 23:31 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  4. 2026-11-04 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  5. 2026-11-03 21:09 UTCEchelonGraph re-scored
  6. 2026-11-03 21:09 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  7. 2026-11-03 16:44 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  8. 2026-11-02 18:47 UTCEchelonGraph re-scored
  9. 2026-11-02 18:47 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  10. 2026-11-02 16:42 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-11-01 16:25 UTCEchelonGraph re-scored
  13. 2026-11-01 16:25 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  14. 2026-10-31 14:02 UTCEchelonGraph re-scored
  15. 2026-10-31 14:02 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  16. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-10-30 11:40 UTCEchelonGraph re-scored
  18. 2026-10-30 11:39 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  19. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-10-29 09:18 UTCEchelonGraph re-scored
  21. 2026-10-29 09:18 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  22. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-10-28 06:57 UTCEchelonGraph re-scored
  24. 2026-10-28 06:57 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  26. 2026-10-27 04:36 UTCEchelonGraph re-scored
  27. 2026-10-27 04:36 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  28. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  29. 2026-10-25 21:43 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  30. 2026-10-25 16:33 UTCEchelonGraph re-scored
  31. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  32. 2026-10-24 19:08 UTCEchelonGraph re-scored
  33. 2026-10-24 19:08 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  34. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  35. 2026-10-23 16:45 UTCEchelonGraph re-scored
  36. 2026-10-23 16:45 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  37. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  38. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  39. 2026-10-22 14:24 UTCEchelonGraph re-scored
  40. 2026-10-22 14:24 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  41. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  42. 2026-10-21 12:01 UTCEchelonGraph re-scored
  43. 2026-10-21 12:00 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  44. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  45. 2026-10-20 09:39 UTCEchelonGraph re-scored
  46. 2026-10-20 09:39 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  47. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  48. 2026-10-19 07:17 UTCEchelonGraph re-scored
  49. 2026-10-19 07:17 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  50. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  51. 2026-10-18 04:55 UTCEchelonGraph re-scored
  52. 2026-10-18 04:54 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  53. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  54. 2026-10-17 02:31 UTCEchelonGraph re-scored
  55. 2026-10-17 02:31 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  56. 2026-10-16 16:38 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  57. 2026-10-16 00:09 UTCEchelonGraph re-scored
  58. 2026-10-16 00:09 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  59. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  60. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  61. 2026-10-14 16:22 UTCEchelonGraph re-scored
  62. 2026-10-14 16:21 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  63. 2026-10-13 16:32 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  64. 2026-10-13 14:00 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  65. 2026-10-12 17:09 UTCEchelonGraph re-scored
  66. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  67. 2026-10-12 11:27 UTCGHSA enrichmentGHSA-pjv2-vrgg-p8qv · GitHub severity CRITICAL · GitHub CVSS 9.1
  68. 2026-10-11 20:41 UTCEchelonGraph re-scored
  69. 2026-10-11 18:52 UTCEchelonGraph re-scored
  70. 2026-10-11 15:29 UTCEchelonGraph re-scored
  71. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  72. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  73. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  74. 2026-10-08 17:09 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  75. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-34434?
CVE-2025-34434 is a critical-severity vulnerability; its CVE record was published on December 17, 2025. AVideo versions prior to 20.1 with the ImageGallery plugin enabled is vulnerable to unauthenticated file upload and deletion. Plugin endpoints responsible for managing gallery images fail to enforce authentication checks and do not validate ownership, allowing unauthenticated attackers to upload or…
When was the CVE record for CVE-2025-34434 published?
The CVE record for CVE-2025-34434 was published on December 17, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 23, 2026; the record at its source may have been updated since.
Is CVE-2025-34434 actively exploited?
CVE-2025-34434 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-34434?
CVE-2025-34434 has a CVSS base score of 9.3 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2025-34434?
A fix for CVE-2025-34434 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2025-34434

Explore →

Is Your Infrastructure Affected by CVE-2025-34434?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs