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7.1 High

LogChimp 0.9.0-alpha.1 before 0.9.3 contains an authorization bypass vulnerability that allows authenticated post authors to modify any…

CVE-2026-121560

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. Attackers can set postId to their own post and id to an enumerated victim post UUID to overwrite its title, slug, content, boardId and roadmapid.

Assessment

CVSS
7.1 (v4.0)
Severity
High
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
3 November 2026
Last updated
3 November 2026
Affected
logchimp · logchimp
Assigner
VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

At the source

References

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