Vulnerability · Published Mar 27, 2026 · Assigned by CERT-PL
CVE-2026-25101Session Fixation in Bludit
Medium 4.8
In plain English
A medium-severity session fixation in Bludit from Bludit. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 4.0)4.8Medium
Exploit odds (30 days)0.4%top 68.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same after authentication. This behavior enables an attacker to fix a session ID for a victim and later hijack the authenticated session. This issue was fixed in version 3.17.2.
Affected products (as reported)
Weakness: CWE-384 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
References
- https://cert.pl/posts/2026/03/CVE-2026-25099 third-party-advisory
- https://github.com/bludit/bludit/releases/tag/3.17.2 release-notes