CVE-2026-52766

01/תיאור (מקור, אנגלית)

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.

02/קישורים4

• github.com/YesWiki/yeswiki/commit/ed5b548a705c8091ba0282aaaba7‮…
• github.com/YesWiki/yeswiki/releases/tag/v4.6.6
• github.com/YesWiki/yeswiki/security/advisories/GHSA-6x7x-gcmf-‮…
• github.com/YesWiki/yeswiki/security/advisories/GHSA-6x7x-gcmf-‮…