CVE-2021-37627
HIGH8.0EPSS 0.48%Privilege escalation via form generator
Published: 8/23/2021Modified: 3/13/2026
Also known as:GHSA-hq5m-mqmx-fw6m
Description
### Impact It is possible for untrusted users to gain administrator rights with the form generator. Installations are only affected if there are untrusted back end users with access to the form generator. ### Patches Update to Contao 4.4.56, 4.9.18 or 4.11.7. ### Workarounds Disable the form generator or disable the login for untrusted back end users. ### References https://contao.org/en/security-advisories/privilege-escalation-with-the-form-generator ### 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).
Affected packages (2)
- Packagist/contao/contao>= 4.0.0, < 4.4.56
- Packagist/contao/core-bundle>= 4.0.0, < 4.4.56
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.0 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-37627
- PATCHhttps://github.com/contao/contao
- WEBhttps://contao.org/en/security-advisories/privilege-escalation-with-the-form-generator.html
- WEBhttps://github.com/contao/contao/security/advisories/GHSA-hq5m-mqmx-fw6m
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2021-37627.yaml
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2021-37627.yaml