What’s Vulnerable › Vulnerabilities
CVE-2026-91010: Invisible Anti-Spam & CAPTCHA < 5.1.1 - Subscriber+ Arbitrary Form Submission Deletion
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-17 · updated 2026-09-18
- Weakness: CWE-862
Description
The Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms WordPress plugin before 5.1.1 does not check the user's capabilities in its message deletion AJAX action, and only tests that a nonce parameter is present rather than validating it, allowing any authenticated user, such as a subscriber, to permanently delete every form submission the Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms WordPress plugin before 5.1.1 has stored.
Affected products
- Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms: from 2.0.5 before 5.1.1 — fixed in 5.1.1
How to fix
Upgrade to a fixed version: Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms 5.1.1. Check the vendor advisory for mitigations.
References
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