XSS in Yaycommerce Yaysmtp
CVE-2025-0916
The YaySMTP and Email Logs: Amazon SES, SendGrid, Outlook, Mailgun, Brevo, Google and Any SMTP Service plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions 2.4.9 to 2.6.2 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. Note: The vulnerability has been initially patched in version 2.4.8 and was reintroduced in version 2.4.9 with the removal of the wp_kses_post() built-in WordPress sanitization function.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.004 (29.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Product)
- security@wordfence.com (Product)
- security@wordfence.com (Product, Release Notes)
- security@wordfence.com (Patch)
Frequently asked questions
- What is CVE-2025-0916?
- CVE-2025-0916 is a high-severity vulnerability in Yaycommerce Yaysmtp, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2025-02-19.
- How severe is CVE-2025-0916?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2025-0916 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.