CVE Catalog

CVE-2026-91073

MediumCVSS 6.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.24%

13th percentile - higher than 13% of all known CVEs

Summary

The Subscribe Forms WordPress plugin before 1.6.3 does not sanitise and escape one of its form settings before outputting it in a page. Authenticated users with the Author role and above can perform Stored Cross-Site Scripting attacks that execute in the browser of any visitor who views a page embedding the form, including logged-out visitors and administrators.

Risk Assessment

A malicious script can execute in the session of administrators or other users, enabling account takeover, session data theft, or site content modification. The risk is high because it affects all visitors of pages containing the form.

Recommendation

Update the Subscribe Forms plugin to version 1.6.3 or later. Check existing forms for embedded malicious scripts.

Related vulnerabilities

Original NVD description (English source)

The Subscribe Forms WordPress plugin before 1.6.3 does not sanitise and escape one of its form settings before outputting it in a page, allowing authenticated users with the Author role and above to perform Stored Cross-Site Scripting attacks that execute in the browser of any visitor who views a page embedding the form, including logged-out visitors and administrators.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS