CVE-2023-2802: Ultimate Addons for Contact Form 7 < 3.1.29 - Admin+ Stored XSS

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-08-14 · updated 2026-06-17

Description

The Ultimate Addons for Contact Form 7 WordPress plugin before 3.1.29 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Affected products

Themefic Ultimate Addons for Contact Form 7: before 3.1.29 — fixed in 3.1.29

How to fix

Upgrade to a fixed version: Themefic Ultimate Addons for Contact Form 7 3.1.29. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/c5cc136a-2fa6-44ff-b5b5-26d367937df9
https://wpscan.com/vulnerability/c5cc136a-2fa6-44ff-b5b5-26d367937df9

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