CVE-2020-12258: rConfig

Critical severity, CVSS 9.1. EPSS: 1.7% chance of exploitation in the next 30 days.

rConfig 3.9.4 is vulnerable to session fixation because session expiry and randomization are mishandled. The application can reuse a session via PHPSESSID. Also, an attacker can exploit this vulnerability in conjunction with CVE-2020-12256 or CVE-2020-12259.

Affected products

• rConfig rConfig: version 3.9.4 only

Published 2020-05-18. Last modified 2026-06-17.