CVE-2026-23836

critical · 9.9

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.

9.9

CVSS

0.4%

EPSS (exploit prob.)

38th

EPSS percentile

2026-01-19

Published

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-20

Affected products

Vendor	Product	Affected versions
hotcrp	hotcrp	>= 3.0, < 3.2

Check a specific version with /api/v1/cve/match.

References

https://github.com/kohler/hotcrp/commit/4674fcfbb76511072a1145dad620756fc1d4b4e9
https://github.com/kohler/hotcrp/commit/bfc7e0db15df6ed6d544a639020d2ce05a5f0834
https://github.com/kohler/hotcrp/security/advisories/GHSA-hpqh-j6qx-x57h

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-23836