Description (CNA)
YesWiki is a wiki system written in PHP. Prior to version 4.6.6, the {{erasespamedcomments}} wiki action (actions/EraseSpamedCommentsAction.php) accepts a suppr[] array from POST and deletes every wiki page whose tag appears in that array, with no authorization check anywhere in the action body or in the page-deletion path it invokes. Combined with YesWiki's allow-by-default action ACL model, any user who has page write access, which is the default for everyone (default_write_acl='*') on a fresh install can permanently delete arbitrary wiki pages, including the front page, admin pages, and pages owned by other users. This issue has been patched in version 4.6.6.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| YesWiki / yeswiki | affected < 4.6.6 |
CWE
CWE-276, CWE-862
References
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-6x7x-gcmf-7r8x
- https://github.com/YesWiki/yeswiki/commit/ed5b548a705c8091ba0282aaaba73ddda976abef
- https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6
ADP enrichment
No English description supplied.