CVE-2026-81791

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-09-10. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

Subscriber Cross Site Scripting (XSS) in EventON <= 2.5.7 versions.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 10, 2026

Advisory Details (1)

Auto-updated Sep 10, 2026
Patch available.
generic Patch Available

Cross Site Scripting (XSS) in WordPress EventON Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/eventon-lite/vulnerability/wordpress-eventon-plugin-2-5-7-cross-site-scripting-xss-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-81791(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 20× in last 7d / 47× 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. 2026-09-24 18:17 UTCEG score recompute
  2. 2026-09-24 18:17 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 19:35 UTCEG score recompute
  5. 2026-09-23 19:35 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 21:00 UTCEG score recompute
  8. 2026-09-22 21:00 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-21 22:29 UTCEG score recompute
  11. 2026-09-21 22:29 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-20 23:59 UTCEG score recompute
  14. 2026-09-20 23:59 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 01:28 UTCEG score recompute
  17. 2026-09-20 01:28 UTCGHSA enrichment
  18. 2026-09-19 02:58 UTCEG score recompute
  19. 2026-09-19 02:58 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 04:27 UTCEG score recompute
  22. 2026-09-18 04:27 UTCGHSA enrichment
  23. 2026-09-17 05:56 UTCEG score recompute
  24. 2026-09-17 05:56 UTCGHSA enrichment
  25. 2026-09-16 14:08 UTCEPSS rescore
Show 22 more
  1. 2026-09-16 07:24 UTCEG score recompute
  2. 2026-09-16 07:24 UTCGHSA enrichment
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-15 08:53 UTCEG score recompute
  5. 2026-09-15 08:53 UTCGHSA enrichment
  6. 2026-09-15 03:12 UTCEPSS rescore
  7. 2026-09-15 03:12 UTCEPSS rescore
  8. 2026-09-14 10:22 UTCEG score recompute
  9. 2026-09-14 10:22 UTCGHSA enrichment
  10. 2026-09-13 11:52 UTCEG score recompute
  11. 2026-09-13 11:52 UTCGHSA enrichment
  12. 2026-09-12 13:22 UTCEG score recompute
  13. 2026-09-12 13:22 UTCGHSA enrichment
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 14:52 UTCGHSA enrichment
  17. 2026-09-10 16:21 UTCGHSA enrichment
  18. 2026-09-10 15:57 UTCEG score recompute
  19. 2026-09-10 15:57 UTCGHSA enrichment
  20. 2026-09-10 15:21 UTCEG score recompute
  21. 2026-09-10 14:35 UTCEG score recompute
  22. 2026-09-10 14:35 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81791?
CVE-2026-81791 is a medium vulnerability published on September 10, 2026. Subscriber Cross Site Scripting (XSS) in EventON <= 2.5.7 versions.
When was CVE-2026-81791 disclosed?
CVE-2026-81791 was first published in the National Vulnerability Database on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81791 actively exploited?
CVE-2026-81791 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 88.4% of all scored CVEs.
What is the CVSS score of CVE-2026-81791?
CVE-2026-81791 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-81791?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81791, 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-2026-81791

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