A AegiFlow
MEDIUMCVSS 6.1EPSS 0.3%

CVE-2026-113659

CVE-2026-113659 updated by NVD

Published
2026-10-20
Modified
2026-10-30
EPSS percentile
27%
Sources
github-advisory, nvd

Summary

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.

Affected packages

EcosystemPackageAffected versionsFixed versions
npmapostrophe—4.33.0

Remediation: Upgrade to 4.33.0 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.