PT-2026-29503 · Unknown · Multilingual Associations

Md Tanzimul Alam Fahim + 1 · CVE-2026-21631 · Published 2026-04-01 · Updated 2026-04-10

Positive Technologies (AI Summary)

CVSS v4.0

5.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U

Name of the Vulnerable Software and Affected Versions versions prior to 2.3

Description A lack of output escaping creates a cross-site scripting (XSS) vector within the multilingual associations component.

Recommendations Update to version 2.3 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-JOOMLA-2026-21631

CVE-2026-21631

Affected Products

Multilingual Associations

References · 6

• 🔥 https://github.com/Shirshaw64p/security-advisories/tree/main/CVE-2026-21631 · Exploit
• https://developer.joomla.org/security-centre/1029-20260303-core-xss-vector-in-com-associations-comparison-view.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-21631 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21631 · Security Note
• https://osv.dev/vulnerability/BIT-joomla-2026-21631 · Vendor Advisory
• https://twitter.com/CVEnew/status/2039279625210306584 · Twitter Post