Postorius
Vendor:
First CVE: Sep 10, 2021 · Active for 4 years
2
Total CVEs
More Total CVEs than 49% of tracked products
1.0
Avg CVEs / Year
Bottom 1%
5.8
Avg CVSS
Higher Avg CVSS than 17% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Postorius over time
Volume of CVEsAvg CVSS Base Score
First CVE
Sep 10, 2021
4 years ago
Most Recent CVE
May 7, 2026
78 days ago
CVE Severity & Scoring
Postorius2 CVEs
100%
All CVEs352,294 CVEs
45%
40%
11%
Medium
Attack Vector
Local0 (0.0%)
Network2 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low2 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None1 (50.0%)
Unknown0 (0.0%)
Required1 (50.0%)
Privileges Required
Low1 (50.0%)
High0 (0.0%)
None1 (50.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (2 CVEs).
2 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-44742MEDIUM 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. | May 7, 2026 | 6.1 | 25 | NO | NO |
CVE-2021-40347MEDIUM An issue was discovered in views/list.py in GNU Mailman Postorius before 1.3.5. An attacker (logged into any account) can send a crafted POST request to unsubscribe any user from a | Sep 10, 2021 | 5.4 | 20 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (2 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (2 CVEs).
Media Mentions
Signals from CVEs in this product scope (2 CVEs).
Top CNAs Publishing CVEs For Postorius
Top CWEs
Versions
No cataloged versions.