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phpMyFAQ before 4.1.8 Stored XSS via html_entity_decode

CVSS 4.0 5.1 MEDIUMCVSS 3.1 5.4 MEDIUMCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-85593

Published

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.

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Affected versions, risk and source history

Exploitation and risk

Source status

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cve-program · CVE-2026-85593

Published

phpMyFAQ before 4.1.8 Stored XSS via html_entity_decode

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.

Source published
4 Sep 2026 11:29:58 UTC
Source modified
14 Sep 2026 13:50:50 UTC
Saved here
23 Oct 2026 15:48:27 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · 5.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS 3.1 · 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

ChangeIntel

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Sources read 14 Nov 17:43 UTC · 274 of 275 readable · 271 fully read · documentation 469/469 current