CVE-2025-27269
Published: 03 March 2025
Description
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
Security Summary
CVE-2025-27269 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the .htaccess Login block WordPress plugin developed by Anton Aleksandrov. The issue affects all versions of the plugin from its initial release (n/a) through 0.9a inclusive. Published on 2025-03-03, it carries a CVSS v3.1 base score of 7.1.
The vulnerability can be exploited remotely over the network (AV:N) with low attack complexity (AC:L), requiring no privileges (PR:N) but user interaction (UI:R), and results in a changed scope (S:C) with low impacts on confidentiality, integrity, and availability (C:L/I:L/A:L). Unauthenticated attackers can deliver malicious payloads via reflected input on affected sites, tricking logged-in users or administrators into executing scripts in their browsers, potentially leading to session hijacking, data theft, or further site compromise within the plugin's context.
The Patchstack advisory provides further details on this WordPress plugin vulnerability, including assessment and recommended actions: https://patchstack.com/database/Wordpress/Plugin/htaccess-login-block/vulnerability/wordpress-htaccess-login-block-plugin-0-9a-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve.
Details
- CWE(s)
MITRE ATT&CK Enterprise Techniques
Why these techniques?
Reflected XSS in public-facing WordPress plugin enables remote exploitation via T1190; facilitates session hijacking through browser script execution allowing cookie theft via T1539.