Debian Bookworm Postorius Important Cross-Site Scripting Fix DSA-6257-1
debian
May 8, 2026
A cross-site scripting vulnerability was discovered in Postorius, the administrative web frontend for Mailman 3
Topics Covered
Summary
For the oldstable distribution (bookworm), this problem has been fixed
in version 1.3.8-3+deb12u1.
For the stable distribution (trixie), this problem has been fixed in
version 1.3.13-1+deb13u1.
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 Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
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Severity
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Critical
Package: postorius
CVE ID: CVE-2026-44742
Topics Covered
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