SecuriTricks - CVE-2025-31363

Description

Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM can request to contact upstream which allows an authenticated user to exfiltrate data from an arbitrary server accessible to the victim via performing a prompt injection in the AI plugin's Jira tool.

Product(s) Impacted

Vendor	Product	Versions
Mattermost	Mattermost	10.4.0-10.4.2, 10.5.0, 9.11.0-9.11.9

Weaknesses

Common security weaknesses mapped to this vulnerability.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	mattermost	mattermost	10.4.0-10.4.2	/	/	/	/	/	/	/
a	mattermost	mattermost	10.5.0	/	/	/	/	/	/	/
a	mattermost	mattermost	9.11.0-9.11.9	/	/	/	/	/	/	/

References

https://mattermost.com/security-updates

CVSS Score

3.0 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: LOW
Scope: CHANGED
Confidentiality Impact: LOW
Integrity Impact: NONE
Availability Impact: NONE

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

View Vector String

Timeline

Published: April 16, 2025, 10:15 a.m.
Last Modified: April 16, 2025, 1:25 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

responsibledisclosure@mattermost.com

CVE-2025-31363