ApostropheCMS up to 4.33.x slugTaken slug permission

Summaryinfo

A vulnerability classified as problematic has been found in ApostropheCMS up to 4.33.x. This affects an unknown part of the file /api/v1/@apostrophecms/doc/slugTaken. The manipulation of the argument slug leads to permission. This vulnerability is uniquely identified as CVE-2026-112952. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in ApostropheCMS up to 4.33.x and classified as problematic. This issue affects some unknown processing of the file /api/v1/@apostrophecms/doc/slugTaken. The manipulation of the argument slug with an unknown input leads to a permission vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality. The summary by CVE is:

ApostropheCMS is an open-source Node.js content management system. Prior to 4.34.0, 'POST /api/v1/@apostrophecms/doc/slugTaken' with body { "slug": "target-slug" } returns a boolean indicating whether a slug is in use across all document types and visibility levels, with no permission or type filter. Any logged-in user (including editors) can enumerate the slug space of private pages, drafts, and archived content. This issue is fixed in version 4.34.0.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-112952 since 10/19/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading to version 4.34.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• ApostropheCMS

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9
• 4.10
• 4.11
• 4.12
• 4.13
• 4.14
• 4.15
• 4.16
• 4.17
• 4.18
• 4.19
• 4.20
• 4.21
• 4.22
• 4.23
• 4.24
• 4.25
• 4.26
• 4.27
• 4.28
• 4.29
• 4.30
• 4.31
• 4.32
• 4.33

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒
• 🔒

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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