HIGH8.7
GHSA-2rxh-h6h9-qrqc
Class destructors causing side-effects when being unserialized in TYPO3 CMS
Quick fix
GHSA-2rxh-h6h9-qrqc — typo3/cms-core: upgrade to the fixed version with the command below.
composer require typo3/cms-core:^9.5.17Details
Calling unserialize() on malicious user-submitted content can result in the following scenarios: - trigger deletion of arbitrary directory in file system (if writable for web server) - trigger message submission via email using identity of web site (mail relay)
Another insecure deserialization vulnerability is required to actually exploit mentioned aspects.
Update to TYPO3 versions 9.5.17 or 10.4.2 that fix the problem described.
### References * https://typo3.org/security/advisory/typo3-core-sa-2020-004
Are you affected?
Enter the version of the package you're using.
Affected packages
Packagist/typo3/cms-core
Introduced in:
9.0.0Fixed in: 9.5.17Fix
composer require typo3/cms-core:^9.5.17Packagist/typo3/cms-core
Introduced in:
10.0.0Fixed in: 10.4.2Fix
composer require typo3/cms-core:^10.4.2References
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-2rxh-h6h9-qrqc[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2020-11066[ADVISORY]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11066.yaml[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11066.yaml[WEB]
- https://typo3.org/security/advisory/typo3-core-sa-2020-004[WEB]