CVE-2026-76931

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreHIGH confidence

Score 6.4 from GitHub Security Advisory published 2026-09-08. a secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0

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

The Zephyr Project Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘message’ parameter in all versions up to, and including, 3.3.205 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability can only be exploited when the 'Directly link to project' plugin setting is disabled.

CVSS v3
6.4
EG Score
6.4(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity64% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 8, 2026

References (5)

Vendor Advisories for CVE-2026-76931(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 19× in last 7d / 52× 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. 2026-09-25 09:24 UTCEG score recompute
  2. 2026-09-25 09:24 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 11:09 UTCGHSA enrichment
  5. 2026-09-23 12:55 UTCEG score recompute
  6. 2026-09-23 12:55 UTCGHSA enrichment
  7. 2026-09-22 16:01 UTCEPSS rescore
  8. 2026-09-22 14:40 UTCEG score recompute
  9. 2026-09-22 14:40 UTCGHSA enrichment
  10. 2026-09-21 21:09 UTCEPSS rescore
  11. 2026-09-21 16:11 UTCEG score recompute
  12. 2026-09-21 16:11 UTCGHSA enrichment
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-20 17:52 UTCGHSA enrichment
  15. 2026-09-19 19:36 UTCEG score recompute
  16. 2026-09-19 19:36 UTCGHSA enrichment
  17. 2026-09-18 21:21 UTCEG score recompute
  18. 2026-09-18 21:21 UTCGHSA enrichment
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-17 22:27 UTCEG score recompute
  21. 2026-09-17 22:27 UTCGHSA enrichment
  22. 2026-09-17 00:11 UTCEG score recompute
  23. 2026-09-17 00:11 UTCGHSA enrichment
  24. 2026-09-16 14:08 UTCEPSS rescore
  25. 2026-09-16 05:15 UTCEPSS rescore
Show 27 more
  1. 2026-09-16 01:56 UTCGHSA enrichment
  2. 2026-09-15 03:41 UTCEG score recompute
  3. 2026-09-15 03:40 UTCGHSA enrichment
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-14 05:25 UTCEG score recompute
  6. 2026-09-14 05:25 UTCGHSA enrichment
  7. 2026-09-13 07:11 UTCEG score recompute
  8. 2026-09-13 07:11 UTCGHSA enrichment
  9. 2026-09-12 15:02 UTCEPSS rescore
  10. 2026-09-12 08:57 UTCEG score recompute
  11. 2026-09-12 08:57 UTCGHSA enrichment
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 10:43 UTCEG score recompute
  14. 2026-09-11 10:43 UTCGHSA enrichment
  15. 2026-09-10 12:06 UTCEG score recompute
  16. 2026-09-10 12:06 UTCGHSA enrichment
  17. 2026-09-10 09:35 UTCEPSS rescore
  18. 2026-09-09 13:51 UTCGHSA enrichment
  19. 2026-09-08 15:36 UTCEG score recompute
  20. 2026-09-08 15:36 UTCGHSA enrichment
  21. 2026-09-08 14:57 UTCEG score recompute
  22. 2026-09-08 14:57 UTCGHSA enrichment
  23. 2026-09-08 13:36 UTCGHSA enrichment
  24. 2026-09-08 12:32 UTCEG score recompute
  25. 2026-09-08 12:32 UTCGHSA enrichment
  26. 2026-09-08 11:37 UTCEG score recompute
  27. 2026-09-08 11:35 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76931?
CVE-2026-76931 is a medium vulnerability published on September 8, 2026. The Zephyr Project Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘message’ parameter in all versions up to, and including, 3.3.205 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Custom-level…
When was CVE-2026-76931 disclosed?
CVE-2026-76931 was first published in the National Vulnerability Database on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76931 actively exploited?
CVE-2026-76931 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 76.4% of all scored CVEs.
What is the CVSS score of CVE-2026-76931?
CVE-2026-76931 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-76931?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76931, 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-2026-76931

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