Description
YesWiki before 4.6.7 contains an authorization bypass vulnerability in the comments API editComment route that allows authenticated low-privilege users to overwrite arbitrary pages or comments by supplying their own page as the pagetag field. Attackers can send a POST request to the api/comments endpoint targeting a victim tag, bypassing per-page write ACLs to replace content and reparent existing pages or comments.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| YesWiki | yeswiki | < 4.6.7 | 4.6.7 |
References
- GitHub Security Advisory (GHSA-894w-63wr-8x5r) vendor-advisory
- VulnCheck Advisory: YesWiki before 4.6.7 Authorization Bypass via Comments API editComment third-party-advisory