Vulnerability details
CVE-2026-44742
Postorius project Postorius
CVSS 3.1
7.2High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.2High | 3.1 | CVEProject cvelistV5 (CNA) (mitre) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Postorius project | Postorius | v ≤ 1.3.13 | CVEProject cvelistV5 (CNA) |
References and advisories
5- 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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Details
- Published
- 2026-05-07
- Last updated
- 2026-05-26
- State
- Published
- Assigner (CNA)
- mitre
Exploit prediction (EPSS)
0.23%
Probability of exploitation in 30 days
14.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-79Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')