ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, an unauthenticated attacker can send a crafted link whose query string is automatically parsed by apos.http.parseQuery when an authenticated victim loads a page with the admin bundle. The parser accepts the special __proto__, constructor, and prototype path keys, allowing browser prototype mutation that can reach an unsafe DOM sink and execute script in the victim's session; anonymous visitors do not load the affected admin context. This issue is fixed in version 4.33.0.
Metrics
Affected Vendors & Products
References
History
Wed, 28 Oct 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 20 Oct 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apostrophecms
Apostrophecms apostrophecms |
|
| Vendors & Products |
Apostrophecms
Apostrophecms apostrophecms |
Tue, 20 Oct 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, an unauthenticated attacker can send a crafted link whose query string is automatically parsed by apos.http.parseQuery when an authenticated victim loads a page with the admin bundle. The parser accepts the special __proto__, constructor, and prototype path keys, allowing browser prototype mutation that can reach an unsafe DOM sink and execute script in the victim's session; anonymous visitors do not load the affected admin context. This issue is fixed in version 4.33.0. | |
| Title | ApostropheCMS: Client-side Prototype Pollution in apos.http.parseQuery leading to DOM-based XSS against authenticated users | |
| Weaknesses | CWE-1321 CWE-79 |
|
| References |
|
|
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-20T17:00:59.007Z
Updated: 2026-10-28T13:59:49.929Z
Reserved: 2026-10-20T14:27:46.641Z
Link: CVE-2026-113659
Updated: 2026-10-28T13:59:44.873Z
Status : Deferred
Published: 2026-10-20T18:17:19.283
Modified: 2026-10-28T14:16:56.857
Link: CVE-2026-113659
No data.