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Weakness (CWE) CWE-639 Authorization Bypass Through User-Controlled Key 1

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Vendor: logchimp × Clear all filters

TI-2026-84366 CVE-2026-121560 · GHSA-xjc5-mcwx-53m7

Authorization bypass in LogChimp lets authors overwrite other posts

Priority LOW 32

LogChimp 0.9.0-alpha.1 before 0.9.3 contains an authorization bypass vulnerability that allows authenticated post authors to modify any other post by supplying mismatched postId and id body parameters.

CVSS 4.0HIGH 7.1· Network · Low privileges · No interaction · EPSS 0.0045 · Published 2026-11-03 · Fixed in 0.9.3 CWE-639

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