Vulnerability in rainbowgeek SEOPress – AI SEO Plugin & On-site SEO

[ Description ]Official description

The SEOPress – AI SEO Plugin & On-site SEO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'display_name' parameter in all versions up to, and including, 10.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable by any Subscriber who sets their display_name to a string containing the literal %%archive_title%% token alongside HTML event-handler payloads, as WordPress stores display names without HTML filtering and the plugin substitutes the token after escaping has already occurred.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• plugins.svn.wordpress.org/wp-seopress/trunk
• plugins.trac.wordpress.org/browser/wp-seopress/tags/10.3/inc/functions/options-social.php
• plugins.trac.wordpress.org/browser/wp-seopress/tags/10.3/inc/functions/options-social.php
• plugins.trac.wordpress.org/browser/wp-seopress/tags/10.3/inc/functions/options-social.php
• plugins.trac.wordpress.org/browser/wp-seopress/tags/10.3/inc/functions/options-social.php
• plugins.trac.wordpress.org/browser/wp-seopress/tags/10.3/inc/functions/options-titles-m…
• plugins.trac.wordpress.org/browser/wp-seopress/tags/10.3/inc/functions/variables/dynami…
• plugins.trac.wordpress.org/changeset/3772366/wp-seopress/trunk/inc/functions/options-so…
• www.wordfence.com/threat-intel/vulnerabilities/id/6651c932-aa60-485b-bb5b-b66d5a8963ae