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Vulnerability DatabaseCVE-2021-43956

CVE-2021-43956: 
Atlassian Fisheye & Crucible vulnerability analysis and mitigation

Overview

The vulnerability CVE-2021-43956 affects the jQuery deserialize library implemented in Fisheye and Crucible versions before 4.8.9. This security flaw was discovered in March 2022 and allows remote attackers to inject arbitrary HTML and JavaScript code through a prototype pollution vulnerability (Atlassian JIRA, NVD).

Technical details

The vulnerability is classified as a prototype pollution issue (CWE-1321) that affects the jQuery deserialize library implementation. It received a CVSS v3.1 Base Score of 6.1 (Medium severity) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, indicating that it is network exploitable, requires low attack complexity, and needs user interaction (NVD).

Impact

The vulnerability enables remote attackers to inject arbitrary HTML and JavaScript code into the application, potentially leading to cross-site scripting attacks. This could result in unauthorized access to sensitive information and potential manipulation of web content (NVD).

Mitigation and workarounds

The vulnerability has been fixed in Fisheye and Crucible version 4.8.9. Users running affected versions (< 4.8.9) should upgrade to version 4.8.9 or later to mitigate this security risk (Atlassian JIRA).

Additional resources

Source: This report was generated using AI

Related Atlassian Fisheye & Crucible vulnerabilities:

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Severity

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Component name

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Has fix

Published date

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