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5.1
Leantime Stored Cross-Site Scripting in SVG Uploads
published 1 year ago
Summary
An attacker can upload a malicious SVG file to Leantime, which can steal user data and redirect them to a different website when they interact with a project. This means an attacker can potentially steal sensitive information or take control of a user's session. Users and administrators should review and update their Leantime installations to ensure they are using the latest version.
What to do
- Update leantime leantime to version 3.3.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| composer | leantime | leantime |
< 3.3 Fix: upgrade to 3.3
|
Original advisory text
Leantime allows Stored Cross-Site Scripting (XSS)
STORED XSS +OPEN REDIRECTION in SVG uploads
Vulnerable url:https://hack.leantime.io/projects/showProject/3
Vulnerable url:https://hack.leantime.io/projects/showProject/3
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker partial control (estimated)
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published21 Feb 2025
Updated6 Mar 2026
First seen6 Mar 2026
Sources
GHSA-mg4c-884j-pcq9 · GHSA
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