CVE-2026-23836: Hotcrp

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

HotCRP is conference review software. A problem introduced in April 2024 in version 3.1 led to inadequately sanitized code generation for HotCRP formulas which allowed users to trigger the execution of arbitrary PHP code. The problem is patched in release version 3.2.

Affected products

• Hotcrp Hotcrp: from 3.0, before 3.2 (fixed in 3.2)

Published 2026-01-19. Last modified 2026-06-17.