TI-2026-19199 Aliases CVE-2026-23836

HotCRP vulnerable to remote code execution through formulas

MEDIUM 49CWE-20Published 2026-01-19 · Updated 2026-01-20

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00456 39th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
kohler	hotcrp	= 3.1	—	No fix listed	CNA

hotcrp Vendorkohler Affected = 3.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:hotcrp:hotcrp::::::::	3.0 to before 3.2	Vulnerable	kohler

cpe:2.3:a:hotcrp:hotcrp:*:*:*:*:*:*:*:* Versions 3.0 to before 3.2 Vulnerable ·kohler

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-23836

References

Patch 3

TI-2026-19236 HotCRP vulnerable to exposure of submitted documents CVSS 3.1MEDIUM 6.5
TI-2026-20318 HotCRP vulnerable to stored XSS via comment attachments CVSS 3.1HIGH 7.3
TI-2022-04415 HotCRP cross site scripting CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences