A3 Lazy Load
Monthly
Stored cross-site scripting in the a3 Lazy Load WordPress plugin (all versions through 2.7.6) allows authenticated Contributor-level users to inject persistent JavaScript into posts via a deliberately crafted <video> tag. Two compounding flaws drive the vulnerability: a regex bug in the _filter_videos() method that mishandles HTML attribute quoting, and unescaped output in the admin/views/form-data.php template. When any user - including a site administrator - views an affected post, the injected event-handler attributes (autofocus, onfocus) execute in the viewer's browser, enabling session hijacking or unauthorized privileged actions. No public exploit has been identified at time of analysis, and the vulnerability is not listed in CISA KEV.
Stored cross-site scripting in the a3 Lazy Load WordPress plugin (all versions through 2.7.6) allows authenticated Contributor-level users to inject persistent JavaScript into posts via a deliberately crafted <video> tag. Two compounding flaws drive the vulnerability: a regex bug in the _filter_videos() method that mishandles HTML attribute quoting, and unescaped output in the admin/views/form-data.php template. When any user - including a site administrator - views an affected post, the injected event-handler attributes (autofocus, onfocus) execute in the viewer's browser, enabling session hijacking or unauthorized privileged actions. No public exploit has been identified at time of analysis, and the vulnerability is not listed in CISA KEV.