CVE-2026-23836

Name: CVE-2026-23836
Creator: NVD / NIST
Published: 2026-01-19T18:16:06.147+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2026-23836 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.39%

31.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Hotcrp	Hotcrp	>= 3.0, < 3.2

References

Timeline

Published: Jan 19, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-23836?

How severe is CVE-2026-23836?

CVE-2026-23836 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2026-23836?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-23836?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST