The WP Mailster plugin before 1.5.5 for WordPress has XSS in the unsubscribe handler via…
Priority LOW 35CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
The WP Mailster plugin before 1.5.5 for WordPress has XSS in the unsubscribe handler via the mes parameter to view/subscription/unsubscribe2.php.
Why it matters now
EPSS 0.05088 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-17451
- 2026-10-03 Alias added: GHSA-28jr-36gh-qwvh
References
More brandtoss Wp Mailster vulnerabilities
- TI-2024-36003 WordPress WP Mailster plugin <= 1.8.16.0 - Broken Access Control vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-36005 WordPress WP Mailster plugin <= 1.8.16.0 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-36002 WordPress WP Mailster plugin <= 1.8.16.0 - Sensitive Data Exposure vulnerability CVSS 3.1HIGH 7.5
- TI-2025-16207 WordPress WP Mailster plugin <= 1.8.17.0 - Sensitive Data Exposure vulnerability CVSS 3.1HIGH 7.5
- TI-2024-36001 WordPress WP Mailster plugin <= 1.8.16.0 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
- TI-2024-36443 WordPress WP Mailster plugin <= 1.8.17.0 - Cross Site Request Forgery (CSRF) vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2017-17451 · CVE Program
- CVE-2017-17451 · NVD
- FIRST EPSS
- GHSA-28jr-36gh-qwvh · GitHub Advisory Database · CC BY 4.0
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