CVE-2021-31745
CWE-384Published: December 10, 2021· Updated: Jun 17, 2026
Official Description
Session Fixation vulnerability in login.php in Pluck-CMS Pluck 4.7.15 allows an attacker to sustain unauthorized access to the platform. Because Pluck does not invalidate prior sessions after a password change, access can be sustained even after an administrator performs regular remediation attempts such as resetting their password.
Technical Analysis
CVE-2021-31745 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-384)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-31745 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts