CVE-2026-79632 WPFunnels < 3.13.0 - Unauthenticated Arbitrary Recipient Email Sending via wpfnl_shortcode_optin_submission
Unauthenticated attackers can send arbitrary emails to any recipient via the opt-in submission handler due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-79632?
CVE-2026-79632 is a medium-severity missing authorization vulnerability in Unknown WPFunnels, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WPFunnels WordPress plugin before 3.13.0 does not perform any authorisation or nonce check in one of its opt-in submission handlers, and takes the notification recipients and subject from the request, allowing unauthenticated users to make the site send emails to arbitrary recipients with an arbitrary subject.
Weakness: CWE-862
Which versions are affected by CVE-2026-79632?
How do I fix CVE-2026-79632?
No fix has been published for CVE-2026-79632 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-79632 being exploited?
There is no known exploitation of CVE-2026-79632 in the wild and no public exploit code.
Sources
Also known as GHSA-4w2x-h688-7527.