WordPress plugin
Blue Captcha security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 2 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High0
- Medium2
- Low0
All Blue Captcha vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Cross-Site Request Forgery via 'blcap_action' Parameter ≤2.0.1Update to 2.1.0 | CVE-2026-10552 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤1.7.4Update to 2.0.0 | CVE-2025-28880 |
- Medium4.3Cross-Site Request Forgery via 'blcap_action' Parameter
≤2.0.1Update to 2.1.0
- Medium6.1Reflected Cross-Site Scripting
≤1.7.4Update to 2.0.0
Blue Captcha: common questions
Does Blue Captcha have known vulnerabilities?
Yes. VulnCrest Radar lists 2 known vulnerabilities in Blue Captcha: 2 medium. None are known to affect version null.
How do I check which version of Blue Captcha I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Blue Captcha vulnerability?
CVE-2026-10552, published Jun 23, 2026: Blue Captcha <= 2.0.1 - Cross-Site Request Forgery via 'blcap_action' Parameter. Severity: Medium (CVSS 4.3).
Is any Blue Captcha vulnerability listed in CISA KEV?
No. None of the known Blue Captcha vulnerabilities is currently listed in the CISA KEV catalog.