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WordPress plugin

BestWebSoft Captcha <= 4.0.6 — CAPTCHA Bypass

CVE-2014-9283Published · Updated

Action summary

Affected: <4.0.7Update to 4.0.7 or newer

All remediation steps
Watch plugin
Severity
Medium5.3
CVSS
5.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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:N Confidentiality
None
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-804 Guessable CAPTCHA
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Captcha by BestWebSoft – Advanced Spam Protection, Math & OCR-Friendly Captcha for Site Forms captcha-bws

  1. Affected< 4.0.7
  2. Patched in4.0.7

Update to 4.0.7 or newer.

You are affected if you run < 4.0.7. Version 4.0.7 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Captcha by BestWebSoft – Advanced Spam Protection, Math & OCR-Friendly Captcha for Site Forms.
  • 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 4.0.7, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Captcha by BestWebSoft – Advanced Spam Protection, Math & OCR-Friendly Captcha for Site Forms to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence.

The BestWebSoft Captcha plugin before 4.0.7 for WordPress allows remote attackers to bypass the CAPTCHA protection mechanism and obtain administrative access via unspecified vectors.

Exploits & references

Proof-of-concept & detection

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

Advisories & patches

More in Captcha by BestWebSoft – Advanced Spam Protection, Math & OCR-Friendly Captcha for Site Forms

All 3
More vulnerabilities in Captcha by BestWebSoft – Advanced Spam Protection, Math & OCR-Friendly Captcha for Site Forms
SeverityVulnerabilityCVEPublished
Medium5.3Missing Authorization
≤5.2.8No patch available
CVE-2026-39772
Medium5.3Captcha Bypass
≤5.2.0Update to 5.2.1
CVE-2024-31295

Timeline

  1. CVE published

    Severity medium, CVSS 5.3

  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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