CVE-2026-1634
Unknown Unknown - Not Provided
Reflected XSS in Subitem AL Slider WordPress Plugin

Publication date: 2026-02-07

Last updated on: 2026-02-07

Assigner: Wordfence

Description
The Subitem AL Slider plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `$_SERVER['PHP_SELF']` parameter in all versions up to, and including, 1.0.0 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.
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Meta Information
Published
2026-02-07
Last Modified
2026-02-07
Generated
2026-06-16
AI Q&A
2026-02-07
EPSS Evaluated
2026-06-14
NVD
CVE-2026-1634
EUVD
EUVD-2026-5743
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
al_slider plugin to 1.0.0 (inc)
alexdtn subitem_al_slider to 1.0.0 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

The Subitem AL Slider plugin for WordPress has a vulnerability known as Reflected Cross-Site Scripting (XSS) in all versions up to and including 1.0.0. This occurs because the plugin does not properly sanitize or escape the input from the $_SERVER['PHP_SELF'] parameter. As a result, an attacker can inject malicious web scripts that are reflected back to users when they visit certain pages.

This vulnerability can be exploited by unauthenticated attackers who trick users into clicking on specially crafted links, causing the malicious scripts to execute in the context of the user's browser.

Impact Analysis

This vulnerability can lead to several impacts including the execution of arbitrary scripts in the victim's browser. This can result in theft of user credentials, session hijacking, defacement of the website, or redirection to malicious sites.

Since the attack requires user interaction (clicking a link), it can be used in phishing attacks or to spread malware.

The CVSS score of 6.1 indicates a medium severity, highlighting that while the attack is remotely exploitable without privileges, it requires user interaction and can compromise confidentiality and integrity.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

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