CVE-2025-22303 json
WordPress WP Mailster plugin <= 1.8.17.0 - Sensitive Data Exposure vulnerability
published 2025-01-07 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-2703
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
Insertion of Sensitive Information Into Sent Data vulnerability in brandtoss WP Mailster wp-mailster allows Retrieve Embedded Sensitive Data.This issue affects WP Mailster: from n/a through <= 1.8.17.0.
Patch / fix
- brandtoss WP Mailster 1.8.18.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 22 mo ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected products
- brandtoss WP Mailster
Classification
- Weakness
-
- CWE-201 Insertion of Sensitive Information Into Sent Data
- Technology feeds
References
-
patchstack.com
/database/Wordpress/Plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-8-17-0-sensitive-data-expo
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2025-22303
- NVD CVE-2025-22303
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.