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TI-2026-19236 Aliases CVE-2026-23878

HotCRP vulnerable to exposure of submitted documents

Priority LOW 35CWE-201Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-201.

Summary

HotCRP is conference review software. Starting in commit aa20ef288828b04550950cf67c831af8a525f508 and prior to commit ceacd5f1476458792c44c6a993670f02c984b4a0, authors with at least one submission on a HotCRP site could use the document API to download any documents (PDFs, attachments) associated with any submission. The problem was patched in commit ceacd5f1476458792c44c6a993670f02c984b4a0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00308 23rd 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
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
kohlerhotcrp>= aa20ef288828b04550950cf67c831af8a525f508, < ceacd5f1476458792c44c6a993670f02c984b4a0—No fix listedCNA
  • hotcrp Vendorkohler Affected >= aa20ef288828b04550950cf67c831af8a525f508, < ceacd5f1476458792c44c6a993670f02c984b4a0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hotcrp:hotcrp:3.1:*:*:*:*:*:*:*3.1Vulnerablekohler
  • cpe:2.3:a:hotcrp:hotcrp:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·kohler

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23878

References

Patch 2

Advisory 1

  • TI-2026-19199 HotCRP vulnerable to remote code execution through formulas CVSS 3.1CRITICAL 10.0
  • 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