CVE-2022-23503

TYPO3 vulnerable to Arbitrary Code Execution via Form Framework

HIGH

8.8

CVSS Score

Published: December 14, 2022 at 07:51 AM UTC

Updated: June 17, 2026 at 04:30 AM UTC

1 product affected across 1 vendorTYPO3

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Severity

HIGH8.8

Exploit prediction

EPSS 0.8%

SSVC

No known exploit

Description

TYPO3 is an open source PHP based web content management system. Versions prior to 8.7.49, 9.5.38, 10.4.33, 11.5.20, and 12.1.1 are vulnerable to Code Injection. Due to the lack of separating user-submitted data from the internal configuration in the Form Designer backend module, it is possible to inject code instructions to be processed and executed via TypoScript as PHP code. The existence of individual TypoScript instructions for a particular form item and a valid backend user account with access to the form module are needed to exploit this vulnerability. This issue is patched in versions 8.7.49 ELTS, 9.5.38 ELTS, 10.4.33, 11.5.20, 12.1.1.

Affected

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

TYPO3 · TYPO3composer

95%

v < 10.4.33v < 11.5.20v < 12.1.1v < 8.7.49v < 9.5.3810.0.0 ≤ v < 10.4.3311.0.0 ≤ v < 11.5.2012.0.0 ≤ v < 12.1.18.0.0 ≤ v < 8.7.499.0.0 ≤ v < 9.5.38

Affected range stops below 10.4.33, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.5.20, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.7.49, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.5.38, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://github.com/TYPO3/typo3/security/advisories/GHSA-c5wx-6c2c-f7rm

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-94

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