CVE-2024-1952 - CVE House
Back to Database
Status published Low CVE-2024-1952

Mattermost version 8.1.x before 8.1.9 fails to sanitize data associated...

Vulnerability Description

Mattermost version 8.1.x before 8.1.9 fails to sanitize data associated with permalinks when a plugin updates an ephemeral post, allowing an authenticated attacker who can control the ephemeral post update to access individual posts' contents in channels they are not a member of.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2024-1952

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Juho Nurminen

References

More from Mattermost

View All →
CVE-2025-9084
Open redirect in OAuth login
Low 3.1
CVE-2025-9081
IDOR in board file download allows any user to download any file by UUID
Low 3.1
CVE-2025-9079
Admin RCE via prepackaged plugins by way of misconfigured imports directory
High 8
CVE-2025-9078
Weak cache keys lead to post IDOR and link preview poisoning
Medium 4.3
CVE-2025-9076
Mattermost Server exposes sensitive user credentials during shared channel membership synchronization
Medium 6.5

Affected Vendor

Affected Software

Mattermost
Vulnerable Versions:
8.1.0, 9.4, 8.1.9

Timeline

Official Publish: February 29th, 2024
Last Modified: April 22nd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Weaknesses (CWE)

CWE-200

MITRE ATT&CK TTPs

T1213 Data from Information Repositories
Collection
T1005 Data from Local System
Collection
T1552 Unsecured Credentials
Credential Access
T1041 Exfiltration Over C2 Channel
Exfiltration