CVE-2026-0540

DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 729097f, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements noscript, xmp, noembed, noframes, iframe in the SAFEFORXML regex. Attacke...

firefox: thunderbird: Confusing display of origin for external protocol handler prompt

The Mozilla Foundation's Security Advisory: The origin of an external protocol handler prompt could be obscured using a data: URL within an iframe...

Mozilla: HTTPS pages could have been intercepted by a registered service worker when they should not have been

The Mozilla Foundation Security Advisory describes this flaw as: When a HTTPS page was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to...

Mozilla: HTTPS pages could have been intercepted by a registered service worker when they should not have been

The Mozilla Foundation Security Advisory describes this flaw as: When a HTTPS page was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to...

Mozilla: HTTPS pages could have been intercepted by a registered service worker when they should not have been

The Mozilla Foundation Security Advisory describes this flaw as: When a HTTPS page was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to...