Auth bypass in Apostrophecms Apostrophe

CVE-2026-113665

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-113665?
CVE-2026-113665 is a low-severity vulnerability in Apostrophecms Apostrophe, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 3.7/10. Published 2026-10-20.
How severe is CVE-2026-113665?
Low severity. CVSS v3 base score is 3.7 out of 10.