Attack Vectors

CVE-2024-31106 is a Medium-severity reflected cross-site scripting (XSS) vulnerability (CVSS 6.1) affecting the Yoo Slider – Image Slider & Video Slider WordPress plugin (yoo-slider) in versions up to and including 2.1.1.

This issue can be exploited by an unauthenticated attacker by crafting a malicious request that includes injected script content and then tricking a user into clicking a link or otherwise loading the crafted URL. Because it’s reflected XSS, the injected script executes in the victim’s browser when they visit the attacker-supplied link, rather than being permanently stored on your site.

Security Weakness

The underlying weakness is insufficient input sanitization and output escaping in Yoo Slider versions ≤ 2.1.1. In practical terms, certain user-supplied inputs are not being adequately cleaned before being displayed back to a visitor in the browser.

This creates an opportunity for attackers to insert browser-executable code (scripts) into a response page. While the vulnerability still requires user interaction (e.g., clicking a link), it does not require an attacker to log in, which increases real-world exposure—especially for organizations that share links publicly, run campaigns, or have staff who routinely click inbound emails and messages.

Technical or Business Impacts

Reflected XSS can lead to session and data exposure risks because the injected script runs in the context of your website in the user’s browser. Depending on what the victim can access, outcomes may include unauthorized actions performed in the user’s session, theft of session-related data, or manipulation of what the user sees on-screen.

For business leaders, the most relevant impacts are often brand trust and compliance risk. A successful XSS attack can be used in convincing phishing-style flows that appear to come from your domain, potentially affecting customers, prospects, or employees. If sensitive information is exposed, it can also trigger incident response costs, regulatory review, and reputational damage—especially for organizations with formal compliance obligations.

Remediation: Update Yoo Slider – Image Slider & Video Slider to version 2.2.0 or newer (patched). Source: Wordfence vulnerability record. CVE reference: CVE-2024-31106.

Similar Attacks

Reflected XSS is a common technique used to hijack user sessions or stage convincing phishing attacks from otherwise legitimate websites. Here are a few real-world examples of XSS-related incidents and write-ups:

British Airways breach and regulatory penalties (CSO Online)
MyFitnessPal breach coverage (WIRED)
OWASP overview of Cross-Site Scripting (XSS)