Vulnerability · Published Aug 12, 2026 · Assigned by WPScan

CVE-2026-16747Kirki < 6.2.1 - Unauthenticated Arbitrary Shortcode Execution via Form Email Actions

Medium 6.5

In plain English

A medium-severity injection in Kirki from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.4%top 69.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The Kirki WordPress plugin before 6.2.1 does not properly authorise its front-end form submission REST routes and passes attacker-controlled input through shortcode execution, allowing unauthenticated users to run any shortcode registered on the site, which on a default install leads to disclosure of the site administrator's email address and an arbitrary-recipient mail relay from the victim's domain.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Kirki	0 – before 6.2.1

Weakness: CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References

https://wpscan.com/vulnerability/4330c6e0-071e-49d6-b1ec-5c8633171bc4/ exploit, vdb-entry, technical-description