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5.1
Bludit posts can contain malicious code that harms users
CVE-2026-27742
Summary
An attacker can inject code into Bludit posts that can harm users' browsers. This can steal users' credentials, change content, or do other actions within the user's account. Update to the latest version of Bludit to fix this problem.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| bludit | bludit | <= 3.16.2 | – |
Original title
Bludit version 3.16.2 contains a stored cross-site scripting (XSS) vulnerability in the post content functionality. The application performs client-side sanitation of content input but does not enf...
Original description
Bludit version 3.16.2 contains a stored cross-site scripting (XSS) vulnerability in the post content functionality. The application performs client-side sanitation of content input but does not enforce equivalent sanitation on the server side. An authenticated user can inject arbitrary JavaScript into the content field of a post, which is stored and later rendered to other users without proper output encoding. When viewed, the injected script executes in the context of the victim’s browser, allowing session hijacking, credential theft, content manipulation, or other actions within the user’s privileges.
nvd CVSS3.1
5.4
nvd CVSS4.0
5.1
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
- https://github.com/bludit/bludit/issues/1579 Exploit Issue Tracking
- https://www.vulncheck.com/advisories/bludit-stored-xss-in-post-content Third Party Advisory
Published: 23 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026