Spam Free WordPress <= 1.9.3 — IP Protection Bypass
7f7a8ee7-af69-4aff-abf7-6d69d920fe61Published · Updated Action summary
Affected: ≤1.9.3Update to 2.0 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-284 Improper Access Control
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Spam Free WordPress spam-free-wordpress
- Affected≤ 1.9.3
- Patched in2.0
Update to 2.0 or newer.
You are affected if you run ≤ 1.9.3. Version 2.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Spam Free WordPress.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 2.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Spam Free WordPress to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Akastep.
The Spam Free WordPress plugin for WordPress is vulnerable to IP Protection Bypass in versions up to, and including, 1.9.3 via the sfw_comment_post_authentication() function due to the fact that the plugin relies on a value that can be user-supplied ('comment_ip' parameter) for the IP address that is checked against the blocklist. This makes it possible for unauthenticated attackers to bypass comment restrictions
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Spam Free WordPress
All 2| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.5 | Full Path Disclosure ≤1.9.3Update to 2.0 | — |
- High7.5Full Path Disclosure
≤1.9.3Update to 2.0
Timeline
CVE published
Severity medium, CVSS 5.3
Record last updated
Sources & licenses
- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.