CVE-2026-44742
- State
- Published
- Severity
- 7.2 High
- Published
- May 7, 2026
- Updated
- May 25, 2026
- Reserved
- May 7, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N | mitre |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
PostoriusPostorius project |
|
References
- https://gitlab.com/mailman/postorius/-/commit/c4706abd05ba6bcf472fc674b160d3a9d6a4868b
- https://gitlab.com/mailman/postorius/-/merge_requests/972
- https://gitlab.com/mailman/postorius/-/issues/620
- 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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