CVE-2026-121560
7.1 HIGHpublic exploit availablePublished 2026-11-03 · Updated 2026-11-03
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Weaknesses
CWE-639
Public exploit & PoC references
- https://github.com/logchimp/logchimp
- https://github.com/logchimp/logchimp/blob/v0.9.2/packages/server/src/controllers/post/updatePost.ts#L67
- https://github.com/logchimp/logchimp/blob/v0.9.2/packages/server/src/middlewares/postExists.ts#L72-L77
- https://github.com/logchimp/logchimp/commit/a78b69af342908472ad400285187e43729295a7c
- https://github.com/logchimp/logchimp/releases/tag/v0.9.3
All references
- https://github.com/logchimp/logchimp
- https://github.com/logchimp/logchimp/blob/v0.9.2/packages/server/src/controllers/post/updatePost.ts#L67
- https://github.com/logchimp/logchimp/blob/v0.9.2/packages/server/src/middlewares/postExists.ts#L72-L77
- https://github.com/logchimp/logchimp/commit/a78b69af342908472ad400285187e43729295a7c
- https://github.com/logchimp/logchimp/releases/tag/v0.9.3
- https://www.vulncheck.com/advisories/logchimp-before-0.9.3-authorization-bypass-via-patch-api-v1-posts
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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