Vulnerabilities / Flexmls® IDX Plugin / WPSEC-2026-3006
Flexmls® IDX Plugin <= 4.1.2 - Unauthenticated Reflected Cross-Site Scripting via IDX Search Widget Request URI
Medium 4.7
CWE-79Fixed in 4.2
- ID
- WPSEC-2026-3006
- Plugin
- Flexmls® IDX Plugin (flexmls-idx)
- Affected
- all versions before 4.2
- Remediation
- Update to 4.2 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-11-12
- Attack surface
- Flexmls® IDX Plugin on WPSec AttackSurface
- Fix released
- Published
Description
The Flexmls® IDX Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the request URI in the IDX Search widget in all versions up to, and including, 4.1.2. This is due to the widget printing $_SERVER['REQUEST_URI'] without escaping into the single-quoted action attribute of its search form when the widget's destination is set to remote. This makes it possible for unauthenticated attackers to inject arbitrary web scripts into pages that execute if they can trick a user, such as an administrator, into clicking a crafted link to a page containing the IDX Search widget.
References
- https://wpsec.com/vuln/WPSEC-2026-3006/
- https://plugins.svn.wordpress.org/flexmls-idx/tags/4.2/
- https://wordpress.org/plugins/flexmls-idx/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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