CVE-2025-45055

Published: Jun 9, 2025Modified: Jun 17, 2026

5.4

Vector

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

Exploitability: 2.3 / Impact: 2.7

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Silverpeas 6.4.2 contains a stored cross-site scripting (XSS) vulnerability in the event management module. An authenticated user can upload a malicious SVG file as an event attachment, which, when viewed by an administrator, executes embedded JavaScript in the admin's session. This allows attackers to escalate privileges by creating a new administrator account. The vulnerability arises from insufficient sanitization of SVG files and weak CSRF protections.

Affected (1)

Products: Silverpeas: Silverpeas

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Silverpeas Silverpeas	Version 6.4.2

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (3)

https://github.com/Silverpeas/Silverpeas-Core/pull/1394

Source: cve@mitre.org

Patch

https://medium.com/@mingihongkim/privilege-escalation-via-svg-injection-in-silverpeas-6-4-2-b5ab1d5b6955

Source: cve@mitre.org

ExploitThird Party Advisory

https://medium.com/@mingihongkim/privilege-escalation-via-svg-injection-in-silverpeas-6-4-2-b5ab1d5b6955

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitThird Party Advisory

Timeline

No history available yet.