CVE-2026-52766 YesWiki: Unauthenticated arbitrary page deletion via `{{erasespamedcomments}}` action

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...

CVE-2026-52766

YesWiki (PHP-based wiki system) is vulnerable to unauthenticated arbitrary page deletion prior to version 4.6.6 . The {{erasespamedcomments}} action (actions/EraseSpamedCommentsAction.php) processes a suppr[] array from POST and deletes pages whose tags match, with no authorization check in the a...

GHSA-6X7X-GCMF-7R8X YesWiki vulnerable to unauthenticated arbitrary page deletion via `{{erasespamedcomments}}` action

Summary 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...

YesWiki vulnerable to unauthenticated arbitrary page deletion via `{{erasespamedcomments}}` action

Summary 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...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the erasespamedcomments process. An attacker can permanently delete arbitrary wiki pages, including critical or administrative pages, by sending crafted POST requests containing a suppr array with targeted page...