CVE-2026-100522

MEDIUMCVSS 6.1

Description

Cotonti through 1.0.0 contains a reflected cross-site scripting vulnerability in message.php where the lng parameter is not properly escaped before output in the confirmation dialog. Unauthenticated attackers can craft malicious links with script payloads in the lng parameter to execute arbitrary JavaScript in victim browser sessions.

Timeline

Published:September 26th, 2026 1:17 AM

Last modified:September 28th, 2026 6:17 PM

CVSS Scoring

CVSS v3: 6.1 (MEDIUM)

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

Weaknesses (CWE)

CWE-79

References & Reports

Advisories, patches, and third-party reports

https://github.com/Cotonti/Cotonti
https://github.com/Cotonti/Cotonti/blob/1.0.0/message.php
https://github.com/Cotonti/Cotonti/issues/1907
https://github.com/Cotonti/Cotonti/pull/1908
https://www.vulncheck.com/advisories/cotonti-through-1.0.0-reflected-xss-via-message-php-lng-parameter

Source: NIST NVD · Data may lag official sources by up to one minute