CVE-2026-76800

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-08-20. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A flaw has been found in DeDeCMS 3. Affected by this vulnerability is an unknown functionality of the file /include/dialog/select_media_post.php. Executing a manipulation of the argument uploadfile can lead to unrestricted upload. The attack can be executed remotely. The exploit has been published and may be used.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

August 20, 2026

Last Modified

August 21, 2026

References (5)

Vendor Advisories for CVE-2026-76800(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 80× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 20:21 UTCGHSA enrichment
  2. 2026-09-19 21:06 UTCEG score recompute
  3. 2026-09-19 21:06 UTCGHSA enrichment
  4. 2026-09-18 21:40 UTCEG score recompute
  5. 2026-09-18 21:40 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-17 21:25 UTCEG score recompute
  8. 2026-09-17 21:25 UTCGHSA enrichment
  9. 2026-09-16 21:46 UTCEG score recompute
  10. 2026-09-16 21:46 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-15 21:30 UTCEG score recompute
  14. 2026-09-15 21:30 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 22:15 UTCGHSA enrichment
  17. 2026-09-13 22:45 UTCEG score recompute
  18. 2026-09-13 22:45 UTCGHSA enrichment
  19. 2026-09-12 23:30 UTCEG score recompute
  20. 2026-09-12 23:30 UTCGHSA enrichment
  21. 2026-09-12 15:02 UTCEPSS rescore
  22. 2026-09-12 00:14 UTCEG score recompute
  23. 2026-09-12 00:14 UTCGHSA enrichment
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 00:59 UTCEG score recompute
Show 71 more
  1. 2026-09-11 00:59 UTCGHSA enrichment
  2. 2026-09-10 09:35 UTCEPSS rescore
  3. 2026-09-10 01:44 UTCGHSA enrichment
  4. 2026-09-09 02:27 UTCEG score recompute
  5. 2026-09-09 02:26 UTCGHSA enrichment
  6. 2026-09-08 22:01 UTCEPSS rescore
  7. 2026-09-08 03:09 UTCEG score recompute
  8. 2026-09-08 03:09 UTCGHSA enrichment
  9. 2026-09-07 03:54 UTCEG score recompute
  10. 2026-09-07 03:54 UTCGHSA enrichment
  11. 2026-09-06 13:48 UTCEPSS rescore
  12. 2026-09-06 04:38 UTCEG score recompute
  13. 2026-09-06 04:38 UTCGHSA enrichment
  14. 2026-09-05 05:23 UTCEG score recompute
  15. 2026-09-05 05:23 UTCGHSA enrichment
  16. 2026-09-04 06:07 UTCEG score recompute
  17. 2026-09-04 06:07 UTCGHSA enrichment
  18. 2026-09-04 05:07 UTCEPSS rescore
  19. 2026-09-03 06:50 UTCEG score recompute
  20. 2026-09-03 06:50 UTCGHSA enrichment
  21. 2026-09-02 14:12 UTCEPSS rescore
  22. 2026-09-02 07:33 UTCEG score recompute
  23. 2026-09-02 07:33 UTCGHSA enrichment
  24. 2026-09-01 13:54 UTCEPSS rescore
  25. 2026-09-01 08:17 UTCEG score recompute
  26. 2026-09-01 08:17 UTCGHSA enrichment
  27. 2026-09-01 04:40 UTCEPSS rescore
  28. 2026-09-01 04:40 UTCEPSS rescore
  29. 2026-08-31 08:57 UTCEG score recompute
  30. 2026-08-31 08:56 UTCGHSA enrichment
  31. 2026-08-30 19:18 UTCEPSS rescore
  32. 2026-08-30 19:17 UTCEPSS rescore
  33. 2026-08-30 09:40 UTCEG score recompute
  34. 2026-08-30 09:40 UTCGHSA enrichment
  35. 2026-08-30 01:22 UTCEPSS rescore
  36. 2026-08-29 10:24 UTCEG score recompute
  37. 2026-08-29 10:24 UTCGHSA enrichment
  38. 2026-08-28 21:42 UTCEPSS rescore
  39. 2026-08-28 11:09 UTCEG score recompute
  40. 2026-08-28 11:09 UTCGHSA enrichment
  41. 2026-08-27 14:25 UTCEPSS rescore
  42. 2026-08-27 11:53 UTCEG score recompute
  43. 2026-08-27 11:53 UTCGHSA enrichment
  44. 2026-08-26 14:47 UTCEPSS rescore
  45. 2026-08-26 12:38 UTCEG score recompute
  46. 2026-08-26 12:38 UTCGHSA enrichment
  47. 2026-08-25 13:49 UTCEPSS rescore
  48. 2026-08-25 13:20 UTCEG score recompute
  49. 2026-08-25 13:20 UTCGHSA enrichment
  50. 2026-08-24 14:18 UTCEPSS rescore
  51. 2026-08-24 14:05 UTCEG score recompute
  52. 2026-08-24 14:05 UTCGHSA enrichment
  53. 2026-08-23 14:50 UTCEG score recompute
  54. 2026-08-23 14:50 UTCGHSA enrichment
  55. 2026-08-23 00:19 UTCEPSS rescore
  56. 2026-08-22 15:35 UTCEG score recompute
  57. 2026-08-22 15:35 UTCGHSA enrichment
  58. 2026-08-21 23:49 UTCEPSS rescore
  59. 2026-08-21 16:20 UTCNVD updateCVSS v4 → 2.1
  60. 2026-08-21 16:20 UTCEG score recompute
  61. 2026-08-21 16:20 UTCGHSA enrichment
  62. 2026-08-21 16:19 UTCMITRE cvelistV5CVSS v4 → 5.3
  63. 2026-08-21 12:05 UTCEG score recompute
  64. 2026-08-21 12:05 UTCGHSA enrichment
  65. 2026-08-20 22:56 UTCEPSS rescore
  66. 2026-08-20 12:50 UTCEG score recompute
  67. 2026-08-20 12:50 UTCGHSA enrichment
  68. 2026-08-20 03:19 UTCEG score recompute
  69. 2026-08-20 03:18 UTCNVD updateCVSS v4 → 2.1
  70. 2026-08-20 02:18 UTCEG score recompute
  71. 2026-08-20 02:17 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76800?
CVE-2026-76800 is a medium vulnerability published on August 20, 2026. A flaw has been found in DeDeCMS 3. Affected by this vulnerability is an unknown functionality of the file /include/dialog/selectmediapost.php. Executing a manipulation of the argument uploadfile can lead to unrestricted upload. The attack can be executed remotely. The exploit has been published…
When was CVE-2026-76800 disclosed?
CVE-2026-76800 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76800 actively exploited?
CVE-2026-76800 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 89.6% of all scored CVEs.
What is the CVSS score of CVE-2026-76800?
CVE-2026-76800 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-76800?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76800, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-76800

Explore →

Is Your Infrastructure Affected by CVE-2026-76800?

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

Start Free Scan →Browse All CVEs