Vulnerability · Published Jul 1, 2025 · Assigned by Wordfence

CVE-2025-6756Ultra Addons for Contact Form 7 <= 3.5.21 - Authenticated (Contributor+) Stored Cross-Site Scripting via UACF7_CUSTOM_FIELDS Shortcode

Medium 6.4

In plain English

A medium-severity cross-site scripting in Ultra Addons for Contact Form 7 from themefic. 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)6.4Medium
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 Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's UACF7_CUSTOM_FIELDS shortcode in all versions up to, and including, 3.5.21 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products (as reported)

VendorProductVersions
themefic Ultra Addons for Contact Form 7 0 – through 3.5.21

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References