MediumGHSA-43gj-mj2w-wh46BIT-typo3-2020-11064CVE-2020-11064

Cross-Site Scripting in TYPO3 CMS Form Engine

Published 13 May 2020 · Updated 8 Jul 2026

Affected packages

typo3/cms-coreComposer
Affected
>=9.0.0 <9.5.17
Fixed in
9.5.17
Update to the fixed version for your release line, for example:composer require typo3/cms-core:^9.5.17
typo3/cms-coreComposer
Affected
>=10.0.0 <10.4.2
Fixed in
10.4.2
Update to the fixed version for your release line, for example:composer require typo3/cms-core:^10.4.2
typo3/cmsComposer
Affected
>=10.0.0 <10.4.2
Fixed in
10.4.2
Update to the fixed version for your release line, for example:composer require typo3/cms:^10.4.2
typo3/cmsComposer
Affected
>=9.0.0 <9.5.17
Fixed in
9.5.17
Update to the fixed version for your release line, for example:composer require typo3/cms:^9.5.17

Details

In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.17 and greater than or equal to 10.0.0 and less than 10.4.2, it has been discovered that HTML placeholder attributes containing data of other database records are vulnerable to cross-site scripting. A valid backend user account is needed to exploit this vulnerability.

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-2020-002

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.