Leantime has HTML injection through firstname and lastname fields
The advisory, in context
Summary
Leantime v2.3.27 is vulnerable to Stored HTML Injection. The firstname and lastname fields in the admin user edit page are rendered without HTML escaping, allowing an authenticated user to inject arbitrary HTML that executes when the profile is viewed.
Vulnerable File
app/Domain/Users/Templates/editUser.tpl.php
Vulnerable Code (Lines ~14-17)
value="<?php echo $values['firstname'] ?>"
value="<?php echo $values['lastname'] ?>"
These fields output raw user input without sanitization.
Steps to Reproduce
- Login as admin > Go to Settings > Users > Edit any user
- Enter HTML payload in First Name or Last Name field:
<h1>INJECTED</h1> - Save the user profile
- Create or view an article — the injected HTML renders in the author name
Fix
Replace unescaped echo with htmlspecialchars():
value="<?php echo htmlspecialchars($values['firstname'], ENT_QUOTES, 'UTF-8') ?>"
value="<?php echo htmlspecialchars($values['lastname'], ENT_QUOTES, 'UTF-8') ?>"
Or use the existing $this->e() helper already used in editOwn.tpl.php.
Impact
- Stored HTML injection visible to all users viewing affected content
- Can be used for phishing, fake login forms, and UI defacement
- Affects all versions before 3.3.0
Affected 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.
Earlier releases before 3.3.0
Fixed in 3.3.0
101 explicitly affected versions
2.4, 2.4-beta, 2.4-beta-7, 2.4-beta-8, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.4.5, 2.4.7, 2.4.8, 3.0.0, 3.0.0-beta, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.1.0-beta, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.2.0, 3.2.0-beta, 3.2.0-beta-2, 3.2.1, 3.3, v2.0, v2.0.1, v2.0.10, v2.0.11, v2.0.12, v2.0.13, v2.0.14, v2.0.15, v2.0.2, v2.0.3, v2.0.4, v2.0.5, v2.0.6, v2.0.7, v2.0.8, v2.0.9, v2.1, v2.1-beta, v2.1-beta2, v2.1-beta3, v2.1-beta5, v2.1-beta6, v2.1.1, v2.1.2, v2.1.3, v2.1.4, v2.1.5, v2.1.6, v2.1.7, v2.1.8, v2.1.9, v2.2.0, v2.2.1, v2.2.10, v2.2.11, v2.2.2, v2.2.3, v2.2.4, v2.2.5, v2.2.6, v2.2.7, v2.2.8, v2.2.9, v2.3.0-beta, v2.3.1-beta, v2.3.10, v2.3.11, v2.3.12, v2.3.13, v2.3.14, v2.3.15, v2.3.16, v2.3.17, v2.3.18, v2.3.19, v2.3.2, v2.3.20, v2.3.21, v2.3.22, v2.3.23, v2.3.24, v2.3.25, v2.3.26, v2.3.27, v2.3.3, v2.3.4, v2.3.5, v2.3.6, v2.3.7, v2.3.8, v2.3.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.3.0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4",
"2.4-beta",
"2.4-beta-7",
"2.4-beta-8",
"2.4.1",
"2.4.2",
"2.4.3",
"2.4.4",
"2.4.5",
"2.4.7",
"2.4.8",
"3.0.0",
"3.0.0-beta",
"3.0.1",
"3.0.2",
"3.0.3",
"3.0.4",
"3.0.5",
"3.0.6",
"3.0.7",
"3.1.0-beta",
"3.1.1",
"3.1.2",
"3.1.3",
"3.1.4",
"3.2.0",
"3.2.0-beta",
"3.2.0-beta-2",
"3.2.1",
"3.3",
"v2.0",
"v2.0.1",
"v2.0.10",
"v2.0.11",
"v2.0.12",
"v2.0.13",
"v2.0.14",
"v2.0.15",
"v2.0.2",
"v2.0.3",
"v2.0.4",
"v2.0.5",
"v2.0.6",
"v2.0.7",
"v2.0.8",
"v2.0.9",
"v2.1",
"v2.1-beta",
"v2.1-beta2",
"v2.1-beta3",
"v2.1-beta5",
"v2.1-beta6",
"v2.1.1",
"v2.1.2",
"v2.1.3",
"v2.1.4",
"v2.1.5",
"v2.1.6",
"v2.1.7",
"v2.1.8",
"v2.1.9",
"v2.2.0",
"v2.2.1",
"v2.2.10",
"v2.2.11",
"v2.2.2",
"v2.2.3",
"v2.2.4",
"v2.2.5",
"v2.2.6",
"v2.2.7",
"v2.2.8",
"v2.2.9",
"v2.3.0-beta",
"v2.3.1-beta",
"v2.3.10",
"v2.3.11",
"v2.3.12",
"v2.3.13",
"v2.3.14",
"v2.3.15",
"v2.3.16",
"v2.3.17",
"v2.3.18",
"v2.3.19",
"v2.3.2",
"v2.3.20",
"v2.3.21",
"v2.3.22",
"v2.3.23",
"v2.3.24",
"v2.3.25",
"v2.3.26",
"v2.3.27",
"v2.3.3",
"v2.3.4",
"v2.3.5",
"v2.3.6",
"v2.3.7",
"v2.3.8",
"v2.3.9"
]
}