CVE-2024-47917: Cross-Site Scripting (XSS) Vulnerability

CVE-2024-47917 Overview

CVE-2024-47917 is a cross-site scripting (XSS) vulnerability classified under [CWE-79]: Improper Neutralization of Input During Web Page Generation. The flaw allows attackers to inject malicious script content that executes in a victim's browser session. The vulnerability was published to the National Vulnerability Database (NVD) on December 30, 2024, and carries a CVSS 3.1 base score of 7.5. The advisory was disclosed through Israeli Government CVE Advisories, with affected vendor and product details not publicly enumerated in the NVD entry.

Critical Impact
An unauthenticated attacker can deliver crafted input over the network that, when rendered by the vulnerable application, causes script execution leading to confidentiality loss for affected users.

Affected Products

Specific affected products are not enumerated in the NVD entry
Vendor identification is Not Available in the public CVE record
Refer to the Israeli Government CVE Advisories for additional context

Discovery Timeline

2024-12-30 - CVE-2024-47917 published to NVD
2026-04-15 - Last updated in NVD database

Technical Details for CVE-2024-47917

Vulnerability Analysis

The vulnerability stems from improper neutralization of user-supplied input before it is incorporated into web page output. When the application renders attacker-controlled data without proper encoding or sanitization, browsers interpret the injected content as executable script. This allows attackers to run arbitrary JavaScript in the security context of the vulnerable application's origin.

The attack vector is network-based and requires no authentication or user interaction according to the CVSS vector. The scope is unchanged, indicating the impact remains within the vulnerable component's security authority. Only confidentiality is affected — integrity and availability are not directly impacted by the flaw itself.

The Exploit Prediction Scoring System (EPSS) places the probability of exploitation at 0.474% with a percentile rank in the mid-thirties, indicating limited observed exploitation activity at the time of analysis.

Root Cause

The root cause is missing or incomplete output encoding in a web page generation path. User-controlled fields flow into the HTML response without contextual escaping, allowing characters such as <, >, and " to break out of intended data contexts and introduce script tags or event handlers.

Attack Vector

An attacker crafts a malicious URL or payload containing JavaScript and induces a victim to visit the resource — or in reflected variants, embeds the payload into a request the victim's browser issues. Because no privileges or user interaction are required per the CVSS vector, automated delivery channels such as phishing emails or malicious advertising can scale the attack.

The vulnerability is described in prose only; no verified proof-of-concept code is publicly available in the referenced advisory. Consult the Israeli Government CVE Advisories for vendor-supplied technical detail.

Detection Methods for CVE-2024-47917

Indicators of Compromise

HTTP request parameters containing script tags, javascript: URIs, or HTML event handler attributes such as onerror= and onload=
Unexpected outbound requests from user browsers to attacker-controlled domains following interaction with the affected application
Server-side logs showing reflected input containing encoded or raw script delimiters

Detection Strategies

Deploy web application firewall (WAF) rules that inspect query strings, form bodies, and headers for XSS payload signatures
Enable Content Security Policy (CSP) report-only mode to surface inline script execution attempts before enforcement
Correlate browser console error telemetry with server access logs to identify reflected injection attempts

Monitoring Recommendations

Monitor anomalous parameter values containing HTML or JavaScript syntax in production traffic
Track session-related events such as cookie theft attempts and unusual authentication flows that may follow successful XSS exploitation
Alert on outbound connections from end-user browsers to unrecognized domains shortly after application use

How to Mitigate CVE-2024-47917

Immediate Actions Required

Identify whether the affected component is deployed by reviewing the Israeli Government CVE Advisories for vendor and version specifics
Apply vendor patches as soon as they are identified for your environment
Enforce a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins

Patch Information

Patch information is not enumerated in the NVD record for CVE-2024-47917. Administrators should consult the linked Israeli Government CVE Advisories portal and the relevant vendor's security bulletins to obtain remediation packages once the affected product is identified.

Workarounds

Apply server-side output encoding for all user-controlled data rendered into HTML, JavaScript, attribute, and URL contexts
Configure WAF rules to block known XSS payload patterns in inbound requests until a patch is applied
Set the HttpOnly and Secure flags on session cookies to reduce the impact of script-based session theft
Enable browser-side protections such as X-Content-Type-Options: nosniff and a restrictive Content-Security-Policy header