CVE-2025-45055

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.

CVSS v3.1

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

EPSS

0.28% chance of exploitation in the next 30 days, 20th percentile

Published

2025-06-09

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2025-4505
• CVE-2025-4506
• CVE-2025-4504
• CVE-2025-4507
• CVE-2025-4503
• CVE-2025-4508