CVE-2026-90914

MEDIUMNVD 6.46.4
EchelonGraph scoreMEDIUM confidence

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

Score 6.4 from GitHub Security Advisory (severity: MODERATE) published 2026-09-29. NVD baseline CVSS 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-89083 (ENISA EUVD) · GHSA-x323-7r73-x2rv (GitHub Security Advisories)Source: ENISA EUVD

6.4EG
EchelonGraph verdictMonitorNo release containing the referenced fix is confirmed: check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.4Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

Joomla! Core - [20260904] - Core - XSS in the generic media output layouts in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - Lack of escaping leads to an XSS vulnerability in the generic audio and video output layouts.

CVSS v3
6.4
EG Score
6.4MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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)
Severity64% × 45%
Impact severity (EG Severity): CVSS 6.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (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 referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.2%
EPSS %ILE
12th
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 (6.4): severity, escalated by confirmed exploitation. This CVE's 6.4 is its impact severity (EG Severity), not escalated.

EG Severity
6.4 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.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; Track* at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation none (CISA Vulnrichment) · Automatable no (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (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

September 29, 2026

Last Modified

October 6, 2026

Advisory Details (2)

Auto-updated Sep 29, 2026
Fix referenced — no release confirmed yet.
Web page

Joomla Content Management System (CMS) - try it! It's free!

https://www.joomla.org/

Vendor Advisories for CVE-2026-90914(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 35× 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 v3 → 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.

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. 2 repeat rows among the latest 94 are merged into the row they repeat.

  1. 2026-11-13 16:58 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-11-12 16:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  3. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-11-11 08:13 UTCEchelonGraph re-scored
  5. 2026-11-11 08:13 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub severity MODERATE · GitHub CVSS 6.4
  6. 2026-11-10 16:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  7. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  8. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  9. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  10. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-11-05 16:39 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  12. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  13. 2026-11-04 02:02 UTCEchelonGraph re-scored
  14. 2026-11-04 02:02 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub severity MODERATE · GitHub CVSS 6.4
  15. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  18. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-10-29 18:33 UTCEchelonGraph re-scored
  21. 2026-10-29 18:33 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub CVSS 6.4
  22. 2026-10-29 17:08 UTCEchelonGraph re-scored
  23. 2026-10-29 17:08 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub CVSS 6.4
  24. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
Show 67 more
  1. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  2. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  3. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  4. 2026-10-25 13:51 UTCEchelonGraph re-scored
  5. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  6. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  7. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  8. 2026-10-22 12:31 UTCEchelonGraph re-scored
  9. 2026-10-22 12:31 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub CVSS 6.4
  10. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  11. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  12. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  13. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  14. 2026-10-18 03:00 UTCEchelonGraph re-scored
  15. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  16. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  17. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  18. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  19. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  20. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  21. 2026-10-12 14:46 UTCEchelonGraph re-scored
  22. 2026-10-11 19:14 UTCEchelonGraph re-scored
  23. 2026-10-11 16:34 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub CVSS 6.4
  24. 2026-10-11 16:30 UTCEchelonGraph re-scored
  25. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  26. 2026-10-11 13:45 UTCEchelonGraph re-scored
  27. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  28. 2026-10-10 16:38 UTCEchelonGraph re-scored
  29. 2026-10-10 16:38 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub CVSS 6.4
  30. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  31. 2026-10-09 16:45 UTCEchelonGraph re-scored
  32. 2026-10-09 16:45 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub CVSS 6.4
  33. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  34. 2026-10-08 16:50 UTCEchelonGraph re-scored
  35. 2026-10-08 16:50 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub CVSS 6.4
  36. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  37. 2026-10-07 16:33 UTCEchelonGraph re-scored
  38. 2026-10-07 16:33 UTCGHSA enrichmentGHSA-x323-7r73-x2rv · GitHub CVSS 6.4
  39. 2026-10-06 16:38 UTCEchelonGraph re-scored▲ 0.50
  40. 2026-10-06 16:38 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  41. 2026-10-06 16:38 UTCNVD updateCVSS v3 → 6.4
  42. 2026-10-06 15:47 UTCEchelonGraph re-scored
  43. 2026-10-06 15:47 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  44. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  45. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  46. 2026-10-05 15:55 UTCEchelonGraph re-scored
  47. 2026-10-05 15:55 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  48. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  49. 2026-10-04 15:57 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  50. 2026-10-03 16:05 UTCEchelonGraph re-scored
  51. 2026-10-03 16:05 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  52. 2026-10-02 16:13 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  53. 2026-10-02 16:12 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  54. 2026-10-02 16:12 UTCEchelonGraph re-scored
  55. 2026-10-02 16:11 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  56. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  57. 2026-10-01 16:17 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  58. 2026-09-30 16:25 UTCEchelonGraph re-scored
  59. 2026-09-30 16:25 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  60. 2026-09-30 16:05 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  61. 2026-09-30 15:45 UTCEchelonGraph re-scored
  62. 2026-09-30 15:45 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  63. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  64. 2026-09-29 21:53 UTCGHSA enrichmentGHSA-x323-7r73-x2rv
  65. 2026-09-29 17:31 UTCEchelonGraph re-scored
  66. 2026-09-29 16:54 UTCEchelonGraph re-scoredFirst assessed: 5.9 MEDIUM
  67. 2026-09-29 16:53 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-90914?
CVE-2026-90914 is a medium-severity vulnerability; its CVE record was published on September 29, 2026. Joomla! Core - [20260904] - Core - XSS in the generic media output layouts in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - Lack of escaping leads to an XSS vulnerability in the generic audio and video output layouts.
When was the CVE record for CVE-2026-90914 published?
The CVE record for CVE-2026-90914 was published on September 29, 2026. 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 October 6, 2026; the record at its source may have been updated since.
Is CVE-2026-90914 actively exploited?
CVE-2026-90914 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-90914?
CVE-2026-90914 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-90914?
A fix for CVE-2026-90914 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-90914 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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