GHSA-95j3-435g-vjcpmedium6.5
Leantime affected by Improper Neutralization of HTML Tags
Impact
HTML can be arbitrarily injected into emails from Leantime due to improper neutralization of HTML tags in users' first names. This effectively allows for the creation of phishing emails from a Leantime instance's email address.
Source excerpt · OSVAffected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
leantime/leantime Packagist
| Affected range | Recorded fix |
|---|---|
| Earlier releases before 3.3Ecosystem versions | 3.3 |
Version evidence: OSV · GHSA-95j3-435g-vjcp
View original version evidence (100 explicit versions)
Original source description
Summary
HTML can be arbitrarily injected into emails from Leantime due to improper neutralization of HTML tags in users' first names. This effectively allows for the creation of phishing emails from a Leantime instance's email address.
References
- Security advisory github.com/Leantime/leantime/security/advisories/GHSA-95j3-435g-vjcp
- Security advisory nvd.nist.gov/vuln/detail/CVE-2025-28254
- Patch github.com/Leantime/leantime/commit/ce1d2073e4601183e1bdd90f4b433d16aee46a50
- Source reference github.com/Leantime/leantime
- Source reference github.com/Leantime/leantime/blob/0e7ddbbe3d582f657a1dddfef7b3419ae588cbf7/app/Domain/Notifications/Services/Notifications.php