What’s Vulnerable › Vulnerabilities

CVE-2026-44742

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-07 · updated 2026-06-17
• Weakness: CWE-79

Description

Postorius through 1.3.13 does not escape HTML in the message subject when rendering it in the Held messages pop-up, as exploited in the wild in May 2026.

Affected products

• Postorius project Postorius: through 1.3.13

References

• https://gitlab.com/mailman/postorius/-/commit/c4706abd05ba6bcf472fc674b160d3a9d6a4868b
• https://gitlab.com/mailman/postorius/-/issues/620
• https://gitlab.com/mailman/postorius/-/merge_requests/972
• https://www.openwall.com/lists/oss-security/2026/05/07/3
• https://lists.debian.org/debian-lts-announce/2026/05/msg00045.html

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