Detections
Analytics

SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-vww6-79rv-3j4x)

medium Tenable Cloud Security Plugin ID 436503

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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
 (CVE-2025-64641)

See Also

https://github.com/advisories/GHSA-vww6-79rv-3j4x

Plugin Details

Severity: Medium

ID: 436503

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 12/27/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

CVSS Score Source: CVE-2025-64641

CVSS v3

Risk Factor: Medium

Base Score: 4.1

Temporal Score: 3.6

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/24/2025

Vulnerability Publication Date: 12/11/2025

Reference Information

CVE: CVE-2025-64641

cwe: CWE-863