What’s Vulnerable › Vulnerabilities

CVE-2026-113660: ApostropheCMS: Authenticated Object-Level Authorization Bypass in exist-in-locale Reveals Restricted Localized Draft Identifiers

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-20
• Weakness: CWE-862

Description

ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, ApostropheCMS’s exist-in-locale API allows an authenticated low-privilege user to determine whether restricted documents exist in a specified locale and mode, including draft mode. The endpoint returns localized document identifiers without applying document-level view or edit authorization criteria. This issue is fixed in version 4.33.0.

Affected products

• apostrophecms apostrophe: before 4.33.0

References

• https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce
• https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350
• https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0
• https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vmxh-77cw-65j7
• https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vmxh-77cw-65j7

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