CVE-2026-25100 Stored XSS via SVG File Upload in Bludit
Authenticated attackers can upload malicious SVG files to execute scripts in victims' browsers, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-25100?
CVE-2026-25100 is a medium-severity cross-site scripting vulnerability in Bludit, published on 27 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-25100?
It affects 1 product.
Products include Bludit Bludit.
How do I fix CVE-2026-25100?
No fix has been published for CVE-2026-25100 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-25100 being exploited?
There is no known exploitation of CVE-2026-25100 in the wild and no public exploit code.
Other vulnerabilities in Bludit
Sources
Also known as GHSA-8v3q-hmmj-942m.