Medium severity · published Feb 22, 2025
CVE-2025-0953
SMTP for Sendinblue – YaySMTP <= 1.2 - Unauthenticated Stored Cross-Site Scripting via Email Logs
6.1
CVSS
0.4%
EPSS
No
On KEV
Description
The SMTP for Sendinblue – YaySMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.2 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SF
SMTP for Sendinblue – YaySMTP · yaycommerce
through 1.2 · source: vendor
YA
Yaysmtp · Yaycommerce
before 1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-0953
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-0953
Product
https://plugins.trac.wordpress.org/browser/smtp-sendinblue/trunk/includes/Functions.php
Product
https://plugins.trac.wordpress.org/browser/smtp-sendinblue/trunk/includes/Helper/Utils.php
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3270561/
Product
https://wordpress.org/plugins/smtp-sendinblue/#developers
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/e7ba65ac-e568-4c13-961d-6453f281d9fc?source=cve