EchBay Admin Security <= 1.3.0 - Reflected Cross-Site Scripting
Strategic Overview
- Status
- Patched in 1.3.1
- Affected Plugin
- EchBay Admin Security
- Affected Version
<= 1.3.0- CVSS
- 6.1Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2025-11885
At a glance
CVE-2025-11885 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the EchBay Admin Security WordPress plugin, affecting versions <= 1.3.0. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.3.1; sites on affected versions should update now. Disclosed November 2025, reported by Jonas Benjamin Friedli.
Vulnerability Overview
The EchBay Admin Security plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the '_ebnonce' parameter in all versions up to, and including, 1.3.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EchBay Admin Security <= 1.3.0 carries this weakness at _ebnonce, and reaching it takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For EchBay Admin Security the fix is 1.3.1: builds <= 1.3.0 are affected, anything from 1.3.1 onward is not.
Remediation
Update to version 1.3.1, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to EchBay Admin Security: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: EchBay Admin Security 1.3.1 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C