Missing authorization in ApostropheCMS notification endpoints
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-639.
Summary
ApostropheCMS (apostrophe npm package) is affected before 4.33.0. Its notification module exposes PATCH and DELETE REST endpoints that change the MongoDB collection directly without checking authentication or whether the requester owns the notification, a missing authorization flaw (CWE-862). An unauthenticated remote attacker who obtains a valid notification ID can modify or permanently delete another user's notification.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the notification module exposes PATCH and DELETE REST endpoints that perform operations directly on the underlying MongoDB collection without verifying that the requester is authenticated or owns the target notification. As a result, an unauthenticated attacker who obtains a valid notification ID can modify or permanently delete another user's notification. This issue is fixed in version 4.33.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| apostrophecms | apostrophe | before 4.33.0 | 4.33.0 | Patch available | CNA |
| — | apostrophe (npm) | before 4.33.0 | 4.33.0 | Patch available | GHSA-vwwx-px9w-crrc |
- apostrophe Vendorapostrophecms Affected before 4.33.0 Fixed in 4.33.0 Patch available CNA
- apostrophe (npm) Vendor— Affected before 4.33.0 Fixed in 4.33.0 Patch available GHSA-vwwx-px9w-crrc
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apostrophecms:apostrophecms:*:*:*:*:*:*:*:* | — | — | apostrophecms |
- cpe:2.3:a:apostrophecms:apostrophecms:*:*:*:*:*:*:*:* Versions — — ·apostrophecms
Remediation
Upgrade the apostrophe npm package to version 4.33.0 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA apostrophe (apostrophecms) Fixed in 4.33.0
- Fix · GHSA-vwwx-px9w-crrc apostrophe (npm) Fixed in 4.33.0 Advisory →
Timeline
- 2026-10-20 Threatist record created from CVE-2026-113665
- 2026-10-21 Alias added: GHSA-vwwx-px9w-crrc
- 2026-10-21 Fix available: npm/[email protected] · GHSA-vwwx-px9w-crrc
- 2026-10-21 CVSS score added · GHSA-vwwx-px9w-crrc
- 2026-10-21 Weakness changed · GHSA-vwwx-px9w-crrc
- 2026-10-21 5 new references · GHSA-vwwx-px9w-crrc
- 2026-10-28 CISA SSVC decision points changed
- 2026-10-28 Priority changed: LOW → MEDIUM
References
Other 5
- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vwwx-px9w-crrc
- https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce
- https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350
- https://github.com/apostrophecms/apostrophe/releases/tag/[email protected]
- https://github.com/apostrophecms/apostrophe
More apostrophecms vulnerabilities
- 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
Sources
- CVE-2026-113665 · CVE Program
- CVE-2026-113665 · NVD
- FIRST EPSS
- GHSA-vwwx-px9w-crrc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences