CVE-2024-49211 is a reflected Cross-Site Scripting (XSS) vulnerability identified in the Archer Platform UX, specifically affecting the Dashboard Listing page in versions prior to 2024.08. Reflected XSS occurs when an application immediately returns user-supplied input in an HTTP response without proper sanitization or encoding, allowing malicious scripts to execute in the victim’s browser. In this case, an unauthenticated remote attacker can craft a URL or input containing malicious JavaScript or HTML code. When a legitimate user accesses this crafted link or inputs the malicious content, the code is reflected back and executed within the context of the Archer Platform web application. This can lead to the attacker stealing session tokens, performing actions on behalf of the user, or redirecting the user to malicious sites. The vulnerability requires user interaction (clicking or input) and does not require prior authentication, increasing its risk. The CVSS 3.1 base score is 5.2, reflecting medium severity with high confidentiality impact, low integrity impact, and no availability impact. The attack complexity is low, and the vulnerability scope is unchanged. No known exploits have been reported in the wild yet. The vulnerability is categorized under CWE-79, which covers improper neutralization of input leading to XSS. The lack of a patch link suggests that remediation may require updating to version 2024.08 or applying vendor-provided mitigations once available.

The primary impact of CVE-2024-49211 is on confidentiality, as attackers can execute malicious scripts in the context of a victim’s browser session, potentially stealing sensitive information such as session cookies, authentication tokens, or other private data accessible through the Archer Platform interface. This can lead to unauthorized access to the victim’s account or sensitive organizational data. The integrity impact is low but present, as attackers might perform limited unauthorized actions on behalf of the victim if the platform does not implement additional safeguards like CSRF tokens or action confirmations. Availability is not affected by this vulnerability. Since the vulnerability is exploitable remotely without authentication but requires user interaction, the attack vector relies on social engineering or phishing campaigns targeting users of the Archer Platform. Organizations using affected versions face risks of data breaches, loss of user trust, and potential compliance violations if sensitive data is exposed. The absence of known exploits in the wild reduces immediate risk but does not eliminate the threat, especially as attackers often develop exploits rapidly after public disclosure.

Organizations should prioritize upgrading the Archer Platform to version 2024.08 or later, where this vulnerability is addressed. Until an official patch is available, implement strict input validation and output encoding on all user-supplied data reflected in the Dashboard Listing page to prevent script injection. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in the browser context. Educate users to be cautious of unsolicited links or inputs, especially those received via email or messaging platforms. Monitor web application logs for unusual URL parameters or suspicious input patterns that may indicate attempted exploitation. Consider deploying Web Application Firewalls (WAFs) with rules designed to detect and block reflected XSS payloads targeting the Archer Platform. Regularly review and update security policies and incident response plans to handle potential XSS incidents. Coordinate with the vendor for timely updates and advisories related to this vulnerability.