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TI-2026-74568 Aliases CVE-2026-110904

Authentication bypass in ApostropheCMS REST API page reading

Priority MEDIUM 63CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

ApostropheCMS before 4.33.0 is affected. An authorization flaw (CWE-863) lets a remote attacker without authentication read page data through the REST API page endpoint, bypassing the expected access checks. A request to the page listing endpoint with all=1 demonstrates the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

ApostropheCMS before 4.33.0 allows authentication bypass for REST API page reading, as demonstrated by a /api/v1/@apostrophecms/page?all=1 call.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00302 23rd percentileScored 2026-11-07
Fix Fixed ApostropheCMS (apostrophecms): 4.33.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
apostrophecmsApostropheCMSbefore 4.33.04.33.0Patch availableCNA
  • ApostropheCMS Vendorapostrophecms Affected before 4.33.0 Fixed in 4.33.0 Patch available CNA

Remediation

Upgrade ApostropheCMS to version 4.33.0 or later, which fixes this issue. The sources do not list a vendor advisory for this fix.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA ApostropheCMS (apostrophecms) Fixed in 4.33.0

Timeline

  1. 2026-10-15 Threatist record created from CVE-2026-110904
  2. 2026-10-15 CISA SSVC decision points changed
  3. 2026-10-15 Priority changed: LOW → MEDIUM

References

Other 1

  • TI-2026-25223 ApostropheCMS has Arbitrary File Write (Zip Slip / Path Traversal) in Import-Export Gzip Extraction CVSS 3.1CRITICAL 10.0
  • TI-2026-32848 Apostrophe has default XSS via `xmp` raw-text passthrough in `sanitize-html` CVSS 3.1CRITICAL 9.3
  • TI-2026-38664 @apostrophecms/seo Vulnerable to Stored XSS via Unsanitized Google Analytics / GTM ID Injected into Script Tag CVSS 3.1HIGH 8.7
  • TI-2026-27673 ApostropheCMS: Stored XSS in SEO Fields Leads to Authenticated API Data Exposure in ApostropheCMS CVSS 3.1HIGH 8.7
  • TI-2026-76992 Unauthenticated resource exhaustion via ApostropheCMS import routes CVSS 3.1HIGH 7.5
  • TI-2026-76974 ApostropheCMS leaves rejected CSV uploads in temporary directory CVSS 3.1HIGH 7.5
See all 65 →

Sources

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