CVE-2026-53609 (GCVE-0-2026-53609)
Vulnerability from cvelistv5
Published
2026-06-12 20:59
Modified
2026-06-15 18:29
Severity ?
CWE
  • CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Summary
ApostropheCMS is an open-source Node.js content management system. In versions up to and including 4.30.0, `apos.util.set()` traverses dot-notation paths without sanitizing `__proto__`, allowing an authenticated editor to write arbitrary values to `Object.prototype` via the `$pullAll` patch operator. A confirmed gadget in `publicApiCheck()` causes this to bypass authorization on all piece-type REST API endpoints for every subsequent unauthenticated request, for the lifetime of the Node.js process. As of time of publication, no known patched versions are available.
Impacted products
Vendor Product Version
apostrophecms apostrophe Version: <= 4.30.0
Create a notification for this product.
Show details on NVD website


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