CVE-2026-25100: Stored XSS via SVG File Upload in Bludit
Bludit is vulnerable to Stored Cross-Site Scripting (XSS) in its image upload functionality. An authenticated attacker with content upload privileges (such as Author, Editor, or Administrator) can upload an SVG file containing a malicious payload, which is executed when a victim visits the URL of the uploaded resource. The uploaded resource itself is accessible without authentication.
The vendor was notified early about this vulnerability, but stopped responding in the middle of coordination. All versions up to 3.18.2 are considered to be vulnerable, future versions might also be vulnerable.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-25100?
CVE-2026-25100 is classified as a high severity vulnerability due to its potential for stored cross-site scripting (XSS) attacks.
Who is affected by CVE-2026-25100?
CVE-2026-25100 affects Bludit versions up to and including 3.18.2 for authenticated users with content upload privileges.
How does CVE-2026-25100 exploit stored XSS vulnerabilities?
CVE-2026-25100 exploits stored XSS by allowing attackers to upload an SVG file containing malicious scripts that are executed when the file is accessed.
How do I fix CVE-2026-25100?
To fix CVE-2026-25100, you should upgrade to the latest version of Bludit that addresses this vulnerability.
What types of users can exploit CVE-2026-25100?
Authenticated users with privileges such as Author, Editor, or Administrator can exploit CVE-2026-25100 to upload malicious SVG files.