Summary
Leantime allows Refelected Cross-Site Scripting (XSS)
The vulnerability in Leantime's "overdue" section allows attackers to upload malicious image files containing XSS payloads. When other users view these files, the scripts execute, enabling attackers to steal sensitive information or perform unauthorized actions. Improving input validation and output encoding in the file upload process can prevent this exploit. Accessing and enhancing the relevant source code modules is crucial for addressing this security flaw effectively.
Impact
This XSS vulnerability allows attackers to inject malicious scripts into the Leantime application, compromising user data, session tokens, and potentially executing unauthorized actions on behalf of users. Exploitation could lead to account takeover, data theft, and unauthorized access to sensitive information, posing a significant risk to user privacy, data integrity, and system security.
Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is GHSA-52XF-H226-PFGX? GHSA-52XF-H226-PFGX is a medium-severity cross-site scripting (XSS) vulnerability in leantime/leantime (composer), affecting versions < 3.3. It is fixed in 3.3. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
- Which versions of leantime/leantime are affected by GHSA-52XF-H226-PFGX? leantime/leantime (composer) versions < 3.3 is affected.
- Is there a fix for GHSA-52XF-H226-PFGX? Yes. GHSA-52XF-H226-PFGX is fixed in 3.3. Upgrade to this version or later.
- Is GHSA-52XF-H226-PFGX exploitable, and should I be worried? Whether GHSA-52XF-H226-PFGX is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-52XF-H226-PFGX is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-52XF-H226-PFGX? Upgrade
leantime/leantimeto 3.3 or later.