CVE-2024-50576 in YouTrack
Summary
by MITRE • 10/28/2024
In JetBrains YouTrack before 2024.3.47707 stored XSS was possible via vendor URL in App manifest
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Analysis
by VulDB Data Team • 03/02/2025
The vulnerability CVE-2024-50576 represents a stored cross-site scripting flaw discovered in JetBrains YouTrack prior to version 2024.3.47707. This security weakness specifically affects the application manifest handling functionality where vendor URLs are processed, creating an avenue for malicious actors to inject persistent malicious scripts into the system. The vulnerability stems from insufficient input validation and sanitization of vendor URL parameters within the application manifest configuration, allowing attackers to store malicious payloads that execute in the context of other users' browsers when they interact with affected applications.
The technical implementation of this vulnerability involves the improper handling of user-controllable input within the application manifest file structure. When administrators or users configure vendor URLs in the manifest, the system fails to adequately sanitize or escape special characters that could enable script execution. This stored XSS vulnerability operates through the application manifest parsing mechanism, where the malicious payload is persisted in the system and executed whenever the manifest is retrieved or processed by a victim's browser. The flaw aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities, and the persistence aspect of the vulnerability corresponds to CWE-807 which deals with insecure direct object references and stored data manipulation.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with potential access to sensitive user data and session information within the YouTrack environment. An attacker could craft malicious vendor URLs containing JavaScript payloads that would execute when legitimate users view application manifests or interact with the affected functionality. This could lead to session hijacking, data exfiltration, privilege escalation, or redirection to malicious sites. The vulnerability affects the integrity and confidentiality of the application, potentially compromising the entire YouTrack instance if attackers successfully exploit the stored XSS to gain elevated privileges or access to sensitive project information.
Mitigation strategies for CVE-2024-50576 require immediate patching to version 2024.3.47707 or later where JetBrains has addressed the input validation issues in the application manifest processing. Organizations should implement comprehensive input sanitization measures for all vendor URL parameters, ensuring that special characters are properly escaped and that all user-controllable inputs undergo rigorous validation before being stored or processed. Network-level protections including web application firewalls and content security policies can provide additional defense-in-depth layers, though these should not replace proper application-level fixes. Security monitoring should focus on detecting unusual manifest configuration activities and potential malicious payload injection attempts, while regular security assessments of application manifest configurations should be conducted to identify similar vulnerabilities in other system components. The remediation approach should follow ATT&CK technique T1059.007 for command and scripting interpreter execution, ensuring that all input processing pathways are hardened against malicious script injection attempts.