CyberRota Analysis
AI-GeneratedYesWiki versions prior to 4.6.6 are vulnerable to a critical authorization flaw in the {{erasespamedcomments}} action, allowing any user with page write access to delete arbitrary wiki pages without proper authorization checks. This vulnerability can lead to the permanent deletion of important content, including front and admin pages, potentially disrupting operations and compromising data integrity. Organizations using affected versions should prioritize upgrading to version 4.6.6 to mitigate this risk, especially those with a default write access configuration.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
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.