What’s Vulnerable › Vulnerabilities

CVE-2024-6243: HTML Forms < 1.3.33 - Admin+ Stored XSS

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-07-22 · updated 2026-06-17
• Weakness: CWE-79

Description

The HTML Forms WordPress plugin before 1.3.33 does not sanitize and escape the form message inputs, allowing high-privilege users, such as administrators, to perform Stored Cross-Site Scripting (XSS) attacks even when the unfiltered_html capability is disabled.

Affected products

• HTML Forms: before 1.3.33 — fixed in 1.3.33

How to fix

Upgrade to a fixed version: HTML Forms 1.3.33. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/f4097877-ba19-4738-a994-9593b9a5a635/
• https://wpscan.com/vulnerability/f4097877-ba19-4738-a994-9593b9a5a635/

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