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Block Bad Bots and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection <= 11.58 — Insufficient Authorization to Unauthenticated Blocklist Bypass

CVE-2025-9376Published · Updated

Action summary

Affected: ≤11.58Update to 11.59 or newer

All remediation steps
Watch plugin
Severity
Medium6.5
CVSS
6.5
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:L Confidentiality
Low
I:N Integrity
None
A:L Availability
Low
Weakness
CWE-863 Incorrect Authorization
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Block Bad Bots and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection stopbadbots

  1. Affected≤ 11.58
  2. Patched in11.59

Update to 11.59 or newer.

You are affected if you run ≤ 11.58. Version 11.59 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Block Bad Bots and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection.
  • 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

  1. Update to version 11.59, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Block Bad Bots and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Jarno Vos (jarnovos).

The Block Bad Bots and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection plugin for WordPress is vulnerable to unauthorized access of data due to an insufficient capability check on the 'stopbadbots_check_wordpress_logged_in_cookie' function in all versions up to, and including, 11.58. This makes it possible for unauthenticated attackers to bypass blocklists, rate limits, and other plugin functionality.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Block Bad Bots and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection

All 10
More vulnerabilities in Block Bad Bots and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection
SeverityVulnerabilityCVEPublished
Medium4.3Missing Authorization to Information Expsoure
≤10.23Update to 10.24
CVE-2024-4355
Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting
≤7.31Update to 7.32
CVE-2023-32496
Medium6.5Missing Authorization to Arbitrary Plugin Installation
≤7.23Update to 7.24
CVE-2022-3883
Critical9.8SQL Injection
<6.930Update to 6.930
CVE-2022-0949
Critical9.8SQL Injection
<6.88Update to 6.90
CVE-2021-25070

Timeline

  1. CVE published

    Severity medium, CVSS 6.5

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
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.

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