SMTP for Amazon SES – YaySMTP <= 1.8 - Unauthenticated Stored Cross-Site Scripting via Email Logs
Priority LOW 38CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The SMTP for Amazon SES – YaySMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Email Logs in all versions up to, and including, 1.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00505 43rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| YayCommerce | SMTP for Amazon SES – YaySMTP | up to 1.8 | — | No fix listed | CNA |
- SMTP for Amazon SES – YaySMTP VendorYayCommerce Affected up to 1.8 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-3434
- 2026-10-03 Alias added: GHSA-fj54-r6pm-4r48
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/78ac91af-4d71-43f4-b9fc-cf5e6874e7de?source=cve
- https://wordpress.org/plugins/smtp-amazon-ses/
- https://plugins.trac.wordpress.org/browser/smtp-amazon-ses/trunk/includes/Functions.php
- https://plugins.trac.wordpress.org/browser/smtp-amazon-ses/trunk/includes/Helper/Utils.php
- https://plugins.trac.wordpress.org/changeset/3270161/
More YayCommerce vulnerabilities
- TI-2024-06722 Unrestricted file upload in YayCommerce YayExtra – WooCommerce Extra Product Options CVSS 3.1CRITICAL 9.8
- TI-2026-75234 Arbitrary file upload in YaySMTP WordPress plugin enables code execution CVSS 3.1HIGH 8.8
- TI-2025-41603 WordPress YayCurrency plugin <= 3.3 - Arbitrary Content Deletion vulnerability CVSS 3.1HIGH 7.5
- TI-2025-37443 WordPress YayPricing plugin <= 3.5.3 - Broken Access Control vulnerability CVSS 3.1HIGH 7.5
- TI-2025-00812 Vulnerability: SMTP for Amazon SES <= 1.8 - Unauthenticated Stored Cross-Site Scripting via Email Logs CVSS 3.1HIGH 7.2
- TI-2025-00808 SMTP for Sendinblue – YaySMTP <= 1.2 - Unauthenticated Stored Cross-Site Scripting via Email Logs CVSS 3.1HIGH 7.2
Sources
- CVE-2025-3434 · CVE Program
- CVE-2025-3434 · NVD
- FIRST EPSS
- GHSA-fj54-r6pm-4r48 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences