CVE-2025-12689

MediumCVSS 6.5/10Last modified Oct 13, 2026

Description

Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed request.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-1287

Affected software

No affected versions have been published.

Timeline

Published: Dec 17, 2025
Last modified: Oct 13, 2026
NVD status: Analyzed

Related CVEs from 2025

CVE-2025-12694.8URL Redirection to Untrusted Site ('Open Redirect') vulnerability in HAVELSAN Liman MYS allows Cross-Site Flashing. This issue affects Lima CVE-2025-126907.8Execution with unnecessary privileges in Forcepoint NGFW Engine allows local privilege escalation.This issue affects NGFW Engine through 6.1 CVE-2025-126916.4The Photonic Gallery & Lightbox for Flickr, SmugMug & Others plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugi CVE-2025-126947.8A local privilege escalation vulnerability exists in Forcepoint VPN Client that allows a local non-administrative user to escalate privilege CVE-2025-126955.9The overly permissive sandbox configuration in DSPy allows attackers to steal sensitive files in cases when users build an AI agent which co CVE-2025-126965.3The HelloLeads CRM Form Shortcode WordPress plugin through 1.0 does not have authorisation and CSRF check when resetting its settings, allow CVE-2025-126974.4GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.5 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 th CVE-2025-126995.5The ZOLL ePCR IOS application reflects unsanitized user input into a WebView. Attacker-controlled strings placed into PCR fields (run number CVE-2025-12707.1Insecure direct object reference (IDOR) vulnerability in Anapi Group's h6web, allows an authenticated attacker to access other users' inform CVE-2025-127044.3GitLab has remediated an issue in GitLab EE affecting all versions from 18.2 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that CVE-2025-127057.2The Social Reviews & Recommendations plugin for WordPress is vulnerable to Stored Cross-Site Scripting via several parameters in the 'trim_t CVE-2025-127077.5The Library Management System plugin for WordPress is vulnerable to SQL Injection via the 'bid' parameter in all versions up to, and includi