CVE-2026-91010

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

MEDIUM
4.3
CVSS Score
Published: September 17, 2026 at 06:00 AM UTC
Updated: September 18, 2026 at 07:19 PM UTC
1 product affected across 1 vendorAnti Spam

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Anti Spam· Webvitalywordpress-plugin
60%
2.0.5 ≤ v < 5.1.12.0.5
Affected range stops below 5.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/08860091-c3e4-43f1-b2e2-82fb8d45a5fa/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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