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Vulnerabilities CVE-2026-71553

CVE-2026-71553

High
Open
TLP:CLEAR

ApostropheCMS: 2nd-order prototype pollution via PATCH leading to single-request persistent DoS

AI Analysis

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Description

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.

Details

CVSS Score
7.1
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Confidence
90%
Published
Aug 17, 2026
Last Modified
Aug 17, 2026
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