CVE-2020-25768
mediumpriority · track · 21EPSS 0.008 · 57 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-f7wm-x4gw-6m23Contao Insert tag injection in forms2020-09-24ghsa · osvUS
### Impact It is possible to inject insert tags in front end forms which will be replaced when the page is rendered. ### Patches Update to Contao 4.4.52, 4.9.6 or 4.10.1. ### Workarounds Disable the front end login form and do not use form fields with array keys such as `fieldname[]`. ### References https://contao.org/en/security-advisories/insert-tag-injection-in-forms ### For more information If you have any questions or comments about this advisory, open an issue in [contao/contao](https://github.com/contao/contao/issues/new/choose).
also known as (3)
Other names and identifiers for this entity.
sources
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references (8)
External citations — patches, advisories, analysis.
- https://community.contao.org/en/forumdisplay.php?4-Announcementscnnvd
- https://contao.org/en/security-advisories/insert-tag-injection-in-forms.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-25768cnnvd
- https://vigilance.fr/vulnerability/Contao-Cross-Site-Scripting-33410cnnvd
- https://community.contao.org/en/forumdisplay.php?4-Announcementsenisa_euvd
- https://contao.org/en/security-advisories/insert-tag-injection-in-forms.htmlenisa_euvd
- https://community.contao.org/en/forumdisplay.php?4-AnnouncementsRelease NotesVendor Advisorynvd
- https://contao.org/en/security-advisories/insert-tag-injection-in-forms.htmlVendor Advisorynvd
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