Open-Source Security Intelligence

Know every vulnerability
before it knows you.

DevGuard continuously monitors your dependencies and alerts you when CVEs like this one affect your stack — with real-time threat intelligence built for developers.

Checkout DevGuardView on GitHub
Search

GHSA-qrfh-cc86-vc8c

MediumCVSS 5.4 / 10
Published Mar 5, 2026·Last modified Mar 5, 2026
Affected Components(0)

No affected components available

Description

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

  1. Login as admin > Go to Settings > Users > Edit any user
  2. Enter HTML payload in First Name or Last Name field: <h1>INJECTED</h1>
  3. Save the user profile
  4. 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
Risk Scores
Base Score
5.4

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.

Threat Intelligence
5.0

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Browse More

Medium severity
Scan your project

Continuously monitor your dependencies and get alerted when vulnerabilities like this one affect your stack.

Checkout DevGuard