CVE-2023-3407
The Subscribe2 plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 10.40.
Does this matter?
Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.
Description
The Subscribe2 plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 10.40. This is due to missing or incorrect nonce validation when sending test emails. This makes it possible for unauthenticated attackers to send test emails with custom content to users on sites running a vulnerable version of this plugin via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- EPSS
- 0.30% probability · 22th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Affected
- subscribe2 project/subscribe2
- Source
- security@wordfence.com
EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://plugins.trac.wordpress.org/browser/subscribe2/trunk/admin/send-email.php#L12Patch
- https://plugins.trac.wordpress.org/changeset/2930676Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/92b4d800-2895-4f7b-8b3b-ee6df75a7908?source=cveThird Party Advisory
- https://plugins.trac.wordpress.org/browser/subscribe2/trunk/admin/send-email.php#L12Patch
- https://plugins.trac.wordpress.org/changeset/2930676Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/92b4d800-2895-4f7b-8b3b-ee6df75a7908?source=cveThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.