CVE-2024-26313 in Archer
Summary
by MITRE • 03/08/2024
Archer Platform 6.x before 6.14 P2 HF2 (6.14.0.2.2) contains a stored cross-site scripting (XSS) vulnerability. A remote authenticated malicious Archer user could potentially exploit this to store malicious HTML or JavaScript code in a trusted application data store. When victim users access the data store through their browsers, the malicious code gets executed by the web browser in the context of the vulnerable application. 6.13.P3 HF1 (6.13.0.3.1) is also a fixed release.
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Analysis
by VulDB Data Team • 06/09/2025
The vulnerability identified as CVE-2024-26313 affects the Archer Platform version 6.x prior to 6.14 P2 HF2 and 6.13.P3 HF1, representing a critical stored cross-site scripting flaw that enables authenticated attackers to inject malicious code into the application's data storage. This vulnerability resides within the Archer platform's data handling mechanisms, where user-supplied content is not properly sanitized before being stored in the application's database. The flaw allows a malicious user with valid credentials to submit HTML or JavaScript code that persists within the system, creating a persistent threat vector that can affect all users who subsequently access the compromised data.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding within the Archer platform's content management system. When legitimate users interact with the application, the stored malicious code executes within the browser context of other users who access the compromised data, effectively enabling the attacker to perform actions on behalf of victims. This type of vulnerability is classified under CWE-79 as "Cross-site Scripting" and specifically represents a stored XSS variant where the malicious payload is permanently stored on the server rather than being reflected in a single request. The attack chain begins with an authenticated user exploiting the input validation weakness to inject malicious code, followed by victim users unknowingly triggering the execution when they view the compromised content.
The operational impact of this vulnerability extends beyond simple code execution, as it enables attackers to perform various malicious activities including session hijacking, credential theft, data exfiltration, and privilege escalation within the Archer environment. The vulnerability affects the platform's core security model by undermining the trust boundaries between users and the application, allowing an attacker to compromise the integrity of the data store and potentially gain access to sensitive information. This represents a significant risk to organizations using Archer for critical business processes, as the malicious code execution can be used to establish persistent access or perform data manipulation attacks. The vulnerability's exploitation requires only authentication credentials, making it particularly dangerous as it can be leveraged by insiders or compromised accounts to gain unauthorized access to the platform's functionality.
Organizations should implement immediate mitigations including applying the vendor-provided patches for versions 6.14 P2 HF2 and 6.13.P3 HF1, which contain the necessary code modifications to sanitize user inputs and properly encode output. Security teams should also consider implementing additional defensive measures such as web application firewalls, input validation rules, and regular security scanning of the Archer platform to detect potential exploitation attempts. The vulnerability aligns with ATT&CK technique T1566.001 for "Phishing: Spearphishing Attachment" and T1059.007 for "Command and Scripting Interpreter: JavaScript" as it enables attackers to deliver malicious JavaScript payloads through the platform's data handling mechanisms. Organizations should conduct thorough security assessments of their Archer deployments, review user access controls, and implement monitoring solutions to detect suspicious data injection activities. The vulnerability demonstrates the importance of proper input sanitization and output encoding practices as outlined in OWASP's top ten security risks, particularly addressing the need for comprehensive protection against cross-site scripting attacks in web applications.