Vulnerability · Published Sep 17, 2026 · Assigned by WPScan

CVE-2026-91010Invisible Anti-Spam & CAPTCHA < 5.1.1 - Subscriber+ Arbitrary Form Submission Deletion

Medium 4.3

In plain English

A medium-severity missing authorization in Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 82.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Unknown	Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms	2.0.5 – before 5.1.1

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

https://wpscan.com/vulnerability/08860091-c3e4-43f1-b2e2-82fb8d45a5fa/ exploit, vdb-entry, technical-description