CVE-2026-71553
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk24th percentile - higher than 24% of all known CVEs
Summary
ApostropheCMS is an open-source Node.js content management system. In 4.32.0 and earlier, PATCH /api/v1/article/:id accepts the inherited path toString.call and passes it through the utility module to apos.util.set() and apos.util.get(), allowing an authenticated editor to overwrite the shared Object.prototype.toString function's call property and cause a persistent process-wide denial of service until restart.
Risk Assessment
The vulnerability allows an authenticated user with editor role to cause a persistent denial of service, which could disrupt the availability of the CMS. However, the attack requires authentication.
Recommendation
It is recommended to upgrade ApostropheCMS to a version later than 4.32.0. Also, restrict editor permissions and monitor unusual PATCH requests.
Original NVD description (English source)
ApostropheCMS is an open-source Node.js content management system. In 4.32.0 and earlier, PATCH /api/v1/article/:id accepts the inherited path toString.call and passes it through the utility module to apos.util.set() and apos.util.get(), allowing an authenticated editor to overwrite the shared Object.prototype.toString function's call property and cause a persistent process-wide denial of service until restart.