Leantime affected by Improper Neutralization of HTML Tags
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.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | leantime/leantime | < 3.3 | 3.3 |
References
- https://github.com/Leantime/leantime/security/advisories/GHSA-95j3-435g-vjcp
- https://nvd.nist.gov/vuln/detail/CVE-2025-28254
- https://github.com/Leantime/leantime/commit/ce1d2073e4601183e1bdd90f4b433d16aee46a50
- https://github.com/Leantime/leantime
- https://github.com/Leantime/leantime/blob/0e7ddbbe3d582f657a1dddfef7b3419ae588cbf7/app/Domain/Notifications/Services/Notifications.php#L128
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-79, CWE-80- Platform
- Composer
- Package
leantime/leantime- Disclosed
- 21.02.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-95j3-435g-vjcp - CC BY 4.0
Vulnerability history: leantime/leantime
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 12
- First → latest
- 02.2025 03.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 8
- Low 2
Disclosures per year
- 2025: 11
- 2026: 1
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Leantime affected by Improper Neutralization of HTML Tags this entry
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