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Fencer Intel
critical 9.9

GHSA-67wg-6j7r-mqh8 json

Arbitrary Code Execution in TYPO3 CMS

published 2y ago modified last yr.

cvss
9.9
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

Due to a missing file extension in the fileDenyPattern, backend user are allowed to upload *.pht files which can be executed in certain web server setups. The new default fileDenyPattern is the following, which might have been overridden in the TYPO3 Install Tool. ``` \.(php[3-7]?|phpsh|phtml|pht)(\..*)?$|^\.htaccess$ ```

Patch / fix

  • packagist typo3/cms 7.6.22, 8.7.5

Is GHSA-67wg-6j7r-mqh8 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CVSS scores

assigned by version score vector
GitHub 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist typo3/cms
>=7.6.0, <7.6.22
>=8.0.0, <8.7.5
7.6.22
8.7.5

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.