CVE-2025-47616

Vulnerability

Overview

The aBlocks plugin for WordPress, up to version 1.9.2, fails to properly neutralize user input during web page generation, leading to a stored Cross-Site Scripting (XSS) vulnerability [1]. This Improper Neutralization (CWE-79) allows attackers to inject malicious scripts into the plugin's content, which are then stored on the server and executed in the browsers of visitors [1].

Exploitation

Conditions

To exploit this vulnerability, an attacker must be authenticated as a user with at least Contributor-level privileges in WordPress [1]. The attacker then injects a crafted payload into the plugin's input fields, which is stored and later rendered without proper sanitization [1]. The exploitation also requires user interaction — for example, a privileged user clicking a malicious link or visiting a crafted page — but the primary attack vector is the stored XSS payload being displayed to site visitors [1].

Impact

Successful exploitation allows an attacker to inject arbitrary HTML and JavaScript into the target site [1]. This can be used to perform redirects, display unwanted advertisements, steal cookies, or execute other malicious actions when visitors access the compromised page [1]. The CVSS v3 base score of 6.5 (Medium) reflects the potential for significant impact on confidentiality and integrity, though exploitation requires some privileges and user interaction [1].

Mitigation

The vendor has released version 1.9.3, which resolves the vulnerability [1]. Users are strongly advised to update the aBlocks plugin to 1.9.3 or later immediately [1]. Administrators can also enable auto-updates for vulnerable plugins to reduce the window of exposure [1].