Detections
Analytics

SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-ff85-qw3h-g9vp)

medium Tenable Self-Hosted Container Security Plugin ID 436089

Description

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

 - Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to validate the
 relationship between the post being updated and the MSTeams plugin OAuth flow which allows an attacker to
 edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL. (CVE-2025-55073)

See Also

https://github.com/advisories/GHSA-ff85-qw3h-g9vp

Plugin Details

Severity: Medium

ID: 436089

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 11/17/2025

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: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2025-55073

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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: 11/14/2025

Vulnerability Publication Date: 11/14/2025

Reference Information

CVE: CVE-2025-55073

cwe: CWE-306