How severe is GHSA-52xf-h226-pfgx?

No CVSS score has been assigned to GHSA-52xf-h226-pfgx yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-52xf-h226-pfgx?

GHSA-52xf-h226-pfgx affects the following packages: leantime/leantime (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-52xf-h226-pfgx?

Update leantime/leantime to 3.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-52xf-h226-pfgx is resolved across your whole dependency graph.

How do I detect GHSA-52xf-h226-pfgx in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for leantime/leantime, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-52xf-h226-pfgx if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is GHSA-52xf-h226-pfgx actively exploited in the wild?

No public exploit code has been indexed for GHSA-52xf-h226-pfgx yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-52xf-h226-pfgx published, and has it been updated?

GHSA-52xf-h226-pfgx was published on February 21, 2025 and was last updated on February 21, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

Not in CISA KEV

Leantime allows Refelected Cross-Site Scripting (XSS)GHSA-52xf-h226-pfgx

GHSA-52xf-h226-pfgx is a security vulnerability in leantime/leantime. A fix is available for leantime/leantime — see the affected versions and patch details below.

Published

Feb 21, 2025

Updated

Feb 21, 2025

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Feb 21, 2025 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🐘leantime/leantime

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Summary

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.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`leantime/leantime`	all versions	3.3`composer require leantime/leantime:^3.3`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for leantime/leantime, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update leantime/leantime to 3.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-52xf-h226-pfgx is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

### Summary 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,

O3 Security · Impact-Aware SCA

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