CVE-2026-91073 Details
Description
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.
A stored cross-site scripting vulnerability has been identified in the Subscribe Forms WordPress plugin, affecting versions prior to 1.6.3. The issue arises because the plugin fails to properly sanitize and escape a specific form setting before displaying it on a page. This flaw allows authenticated users with the Author role and above to inject malicious scripts that are executed in the browsers of visitors viewing the page, including logged-out users and administrators.
Users are advised to update the Subscribe Forms WordPress plugin to version 1.6.3 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 23, 2026CISA-ADP
Assessed Sep 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/50d0d5b6-2204-4af3-92d5-75085ce2f176/ | [email protected] | AdvisoryExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Subscribe Forms | >= 1.4.1, <= 1.6.2 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 23, 2026 | CVE Modified | CISA-ADP |
| Sep 23, 2026 | New CVE Received | [email protected] |