What’s Vulnerable › Vulnerabilities

CVE-2020-25768

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-10-07 · updated 2026-06-17
• Weakness: CWE-20

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.

Affected products

• contao: from 4.0 before 4.4.52; from 4.9.0 before 4.9.6; from 4.10.0 before 4.10.1 — fixed in 4.10.1, 4.4.52, 4.9.6

How to fix

Upgrade to a fixed version: contao 4.10.1, 4.4.52, 4.9.6. Check the vendor advisory for mitigations.

References

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