------------------------------------------------------------------------- Debian LTS Advisory DLA-4600-1 [email protected] https://www.debian.org/lts/security/ Daniel Leidert May 25, 2026 https://wiki.debian.org/LTS -------------------------------------------------------------------------
Package : postorius Version : 1.3.4-2+deb11u2 CVE ID : CVE-2026-44742 Debian Bug : 1136003 A vulnerability has been discovered in postorius, a web user interface to access GNU Mailman3. CVE-2026-44742 If an email is sent to a mailing list with a subject containing HTML code and placed in Held messages, the HTML code is rendered without escaping in the title of the Held messages pop-up leading to a Cross-site Scripting (XSS) vulnerability.. For Debian 11 bullseye, this problem has been fixed in version 1.3.4-2+deb11u2. We recommend that you upgrade your postorius packages. For the detailed security status of postorius please refer to its security tracker page at: https://security-tracker.debian.org/tracker/postorius Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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