CVE-2025-64641

MediumCVSS 4.1/10Last modified Oct 19, 2026

Description

Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fail to verify that post actions invoking /share-issue-publicly were created by the Jira plugin which allowed a malicious Mattermost user to exfiltrate Jira tickets when victim users interacted with affected posts

Metrics

CVSS 3.1 4.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

Weakness enumeration

CWE-863

Affected software

No affected versions have been published.

Timeline

Published
Dec 24, 2025
Last modified
Oct 19, 2026
NVD status
Analyzed

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