WordPress Plugin Vulnerabilities
Better WordPress Google XML Sitemaps <= 1.4.1 - Unauthenticated Stored Cross-Site Scripting
Description
The plugin does not sanitise and escape its logs when outputting them in the admin dashboard, which could allow unauthenticated users to perform Stored Cross-Site Scripting attacks against admins
Proof of Concept
With the permalinks settings set to plain, as an unauthenticated user, open http://example.com/?bwpsitemap=%3Cimg%20src%20onerror=alert(/XSS/)%3E The XSS will be triggered in the log dashboard of the plugin https://example.com/wp-admin/admin.php?page=bwp_gxs_stats
Affects Plugins
No known fix - plugin closed
References
Classification
Miscellaneous
Original Researcher
Krzysztof Zając
Submitter
Krzysztof Zając
Submitter website
Verified
Yes
Timeline
Publicly Published
2022-02-16 (about 7 months ago)
Added
2022-02-16 (about 7 months ago)
Last Updated
2022-04-08 (about 5 months ago)