CVE-2026-121560
highLogChimp 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…
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 roadmap_id.
CVSS
7.1
7.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-11-03 16:17
Modified: 2026-11-03 17:18
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-11-03 17:20 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/logchimp/logchimp disclosure@vulncheck.com
- https://github.com/logchimp/logchimp/blob/v0.9.2/packages/server/src/controllers/post/upda... disclosure@vulncheck.com
- https://github.com/logchimp/logchimp/blob/v0.9.2/packages/server/src/middlewares/postExist... disclosure@vulncheck.com
- https://github.com/logchimp/logchimp/commit/a78b69af342908472ad400285187e43729295a7c disclosure@vulncheck.com
- https://github.com/logchimp/logchimp/releases/tag/v0.9.3 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/logchimp-before-0.9.3-authorization-bypass-via-patch-... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-03 17:20 UTC · record ↗