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On February 28th, 2024, during our second Bug Bounty Extravaganza, we received a submission for an unauthenticated stored Cross-Site Scripting (XSS) vulnerability in Ultimate Member, a WordPress plugin with more than 200,000+ active installations. This vulnerability can be leveraged to inject malicious web scripts.
Props to stealthcopter who discovered and responsibly reported this vulnerability through the Wordfence Bug Bounty Program. This researcher earned a bounty of $563.00 for this discovery during our Bug Bounty Program Extravaganza. Our mission is to Secure the Web, so we are proud to continue investing in vulnerability research like this and collaborating with researchers of this caliber through our Bug Bounty Program. This demonstrates that we are not only committed to investing in making the WordPress ecosystem more secure, but also the entire web.
All Wordfence Premium, Wordfence Care, and Wordfence Response customers, as well as those using the free version of our plugin, are protected against any exploits targeting this vulnerability by the Wordfence firewall’s built-in Cross-Site Scripting protection.