CVE-2021-37627

Privilege escalation via form generator

HIGH

7.2

CVSS Score

Published: August 11, 2021 at 10:50 PM UTC

Updated: June 17, 2026 at 04:00 AM UTC

1 product affected across 1 vendorContao

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Severity

HIGH7.2

Exploit prediction

EPSS 1%

Description

Contao is an open source CMS that allows creation of websites and scalable web applications. In affected versions it is possible to gain privileged rights in the Contao back end. Installations are only affected if they have untrusted back end users who have access to the form generator. All users are advised to update to Contao 4.4.56, 4.9.18 or 4.11.7. As a workaround users may disable the form generator or disable the login for untrusted back end users.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Contao · Contao

95%

v < 4.11.7v < 4.4.56v < 4.9.184.11.0 ≤ v < 4.11.74.4.0 ≤ v < 4.4.564.9.0 ≤ v < 4.9.184.0.0 4.1.0 4.10.0 4.2.0 4.3.0 4.5.0 4.6.0 4.7.0 4.8.0

Affected range stops below 4.11.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.4.56, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.9.18, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://contao.org/en/security-advisories/privilege-escalation-with-the-form-generator.html

References (2)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://contao.org/en/security-advisories/privilege-escalation-with-the-form-generator.html

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://github.com/contao/contao/security/advisories/GHSA-hq5m-mqmx-fw6m

CVSS

7.2HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-269

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