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Fencer Intel
high 7.5

CVE-2022-23503 json

TYPO3 vulnerable to Arbitrary Code Execution via Form Framework

published 3y ago modified 4mo ago also BIT-typo3-2022-23503 , EUVD-2022-7596 , GHSA-c5wx-6c2c-f7rm

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

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.

Patch / fix

  • packagist typo3/cms-core 8.7.49, 9.5.38, 10.4.33, 11.5.20, 12.1.1
  • packagist typo3/cms 10.4.33, 11.5.20, 12.1.1
  • bitnami typo3 8.7.49, 9.5.38, 10.4.33, 11.5.20, 12.1.1
  • typo3 typo3 8.7.49, 9.5.38, 10.4.33, 11.5.20, 12.1.1

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist typo3/cms-core
>=8.0.0, <8.7.49
>=9.0.0, <9.5.38
>=10.0.0, <10.4.33
>=11.0.0, <11.5.20
>=12.0.0, <12.1.1
8.7.49
9.5.38
10.4.33
11.5.20
12.1.1
packagist typo3/cms
>=10.0.0, <10.4.33
>=11.0.0, <11.5.20
>=12.0.0, <12.1.1
10.4.33
11.5.20
12.1.1
bitnami typo3
>=8.0.0, <8.7.49
>=9.0.0, <9.5.38
>=10.0.0, <10.4.33
>=11.0.0, <11.5.20
>=12.0.0, <12.1.1
8.7.49
9.5.38
10.4.33
11.5.20
12.1.1

Affected products

  • TYPO3 typo3

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.