CVE-2025-10745
The Banhammer – Monitor Site Traffic, Block Bad Users and Bots plugin for WordPress is vulnerable to Blocking Bypass in all versions up to, and including, 3.4.8.
Does this matter?
Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own.
Description
The Banhammer – Monitor Site Traffic, Block Bad Users and Bots plugin for WordPress is vulnerable to Blocking Bypass in all versions up to, and including, 3.4.8. This is due to a site-wide “secret key” being deterministically generated from a constant character set using md5() and base64_encode() and then stored in the `banhammer_secret_key` option. This makes it possible for unauthenticated attackers to bypass the plugin’s logging and blocking by appending a GET parameter named `banhammer-process_{SECRET}` where `{SECRET}` is the predictable value, thereby causing Banhammer to abort its protections for that request.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.37% probability · 30th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-330
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/banhammer/trunk/inc/banhammer-core.php#L101
- https://plugins.trac.wordpress.org/browser/banhammer/trunk/inc/banhammer-functions.php#L336
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3365087%40banhammer&new=3365087%40banhammer&sfp_email=&sfph_mail=
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3365979%40banhammer&new=3365979%40banhammer&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/97c46a13-6981-426f-b24a-c9820657042f?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.