CVE-2026-85593

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-09-04. a secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

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

phpMyFAQ versions before 4.1.8 contain a stored cross-site scripting vulnerability in FaqHelper::convertOldInternalLinks() that calls html_entity_decode() on sanitized FAQ content, reversing entity-encoding protection. Authenticated users with FAQ editing privileges can inject JavaScript payloads that execute in the browsers of all users viewing the affected FAQ pages.

CVSS v3
5.4
EG Score
5.4(high)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 14, 2026

Advisory Details (2)

Auto-updated Sep 4, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

phpMyFAQ before 4.1.8 Stored XSS via html_entity_decode | Advisories | VulnCheck

https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-stored-xss-via-html-entity-decode
github Patch Available🟡 PoC Available

Stored XSS via `html_entity_decode()` reversing sanitization in FAQ rendering · Advisory · thorsten/phpMyFAQ · GitHub

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-x6qj-5jhf-xgpm

Vendor Advisories for CVE-2026-85593(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 / 65× 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 15:46 UTCEG score recompute
  2. 2026-09-24 15:46 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 17:51 UTCGHSA enrichment
  6. 2026-09-22 19:56 UTCEG score recompute
  7. 2026-09-22 19:56 UTCGHSA enrichment
  8. 2026-09-22 16:01 UTCEPSS rescore
  9. 2026-09-21 22:01 UTCEG score recompute
  10. 2026-09-21 22:01 UTCGHSA enrichment
  11. 2026-09-21 21:09 UTCEPSS rescore
  12. 2026-09-21 00:05 UTCEG score recompute
  13. 2026-09-21 00:05 UTCGHSA enrichment
  14. 2026-09-20 20:16 UTCEPSS rescore
  15. 2026-09-20 02:10 UTCEG score recompute
  16. 2026-09-20 02:10 UTCGHSA enrichment
  17. 2026-09-19 04:15 UTCEG score recompute
  18. 2026-09-19 04:15 UTCGHSA enrichment
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-18 06:20 UTCEG score recompute
  21. 2026-09-18 06:20 UTCGHSA enrichment
  22. 2026-09-17 19:32 UTCEPSS rescore
  23. 2026-09-17 08:25 UTCEG score recompute
  24. 2026-09-17 08:25 UTCGHSA enrichment
  25. 2026-09-16 14:09 UTCEPSS rescore
Show 40 more
  1. 2026-09-16 10:23 UTCEG score recompute
  2. 2026-09-16 10:23 UTCGHSA enrichment
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-15 12:28 UTCEG score recompute
  5. 2026-09-15 12:28 UTCGHSA enrichment
  6. 2026-09-15 03:12 UTCEPSS rescore
  7. 2026-09-15 03:12 UTCEPSS rescore
  8. 2026-09-14 14:32 UTCEG score recompute
  9. 2026-09-14 14:32 UTCGHSA enrichment
  10. 2026-09-14 14:00 UTCEG score recompute
  11. 2026-09-14 14:00 UTCGHSA enrichment
  12. 2026-09-14 07:57 UTCEG score recompute
  13. 2026-09-14 07:57 UTCGHSA enrichment
  14. 2026-09-13 10:02 UTCEG score recompute
  15. 2026-09-13 10:02 UTCGHSA enrichment
  16. 2026-09-12 12:07 UTCEG score recompute
  17. 2026-09-12 12:07 UTCGHSA enrichment
  18. 2026-09-11 14:53 UTCEPSS rescore
  19. 2026-09-11 14:53 UTCEPSS rescore
  20. 2026-09-11 14:11 UTCEG score recompute
  21. 2026-09-11 14:11 UTCGHSA enrichment
  22. 2026-09-10 16:15 UTCEG score recompute
  23. 2026-09-10 16:15 UTCGHSA enrichment
  24. 2026-09-09 18:15 UTCEG score recompute
  25. 2026-09-09 18:15 UTCGHSA enrichment
  26. 2026-09-08 22:01 UTCEPSS rescore
  27. 2026-09-08 20:18 UTCGHSA enrichment
  28. 2026-09-08 04:10 UTCEG score recompute
  29. 2026-09-08 04:10 UTCGHSA enrichment
  30. 2026-09-07 06:14 UTCEG score recompute
  31. 2026-09-07 06:14 UTCGHSA enrichment
  32. 2026-09-06 13:48 UTCEPSS rescore
  33. 2026-09-06 08:18 UTCEG score recompute
  34. 2026-09-06 08:18 UTCGHSA enrichment
  35. 2026-09-05 15:31 UTCEPSS rescore
  36. 2026-09-05 10:23 UTCEG score recompute
  37. 2026-09-05 10:22 UTCGHSA enrichment
  38. 2026-09-04 12:21 UTCEG score recompute
  39. 2026-09-04 11:34 UTCEG score recompute
  40. 2026-09-04 11:33 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85593?
CVE-2026-85593 is a medium vulnerability published on September 4, 2026. phpMyFAQ versions before 4.1.8 contain a stored cross-site scripting vulnerability in FaqHelper::convertOldInternalLinks() that calls htmlentitydecode() on sanitized FAQ content, reversing entity-encoding protection. Authenticated users with FAQ editing privileges can inject JavaScript payloads…
When was CVE-2026-85593 disclosed?
CVE-2026-85593 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85593 actively exploited?
CVE-2026-85593 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 87.2% of all scored CVEs.
What is the CVSS score of CVE-2026-85593?
CVE-2026-85593 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-85593?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85593, 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-2026-85593

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