MediumGHSA-hw6c-6gwq-3m3mCVE-2024-34357

TYPO3 vulnerable to Cross-Site Scripting in the ShowImageController

Published 14 May 2024 · Updated 10 Sept 2026

Affected packages

typo3/cms-coreComposer
Affected
>=9.0.0 <9.5.48
Fixed in
9.5.48
Update to the fixed version for your release line, for example:composer require typo3/cms-core:^9.5.48
typo3/cms-coreComposer
Affected
>=10.0.0 <10.4.45
Fixed in
10.4.45
Update to the fixed version for your release line, for example:composer require typo3/cms-core:^10.4.45
typo3/cms-coreComposer
Affected
>=11.0.0 <11.5.37
Fixed in
11.5.37
Update to the fixed version for your release line, for example:composer require typo3/cms-core:^11.5.37
typo3/cms-coreComposer
Affected
>=12.0.0 <12.4.15
Fixed in
12.4.15
Update to the fixed version for your release line, for example:composer require typo3/cms-core:^12.4.15
typo3/cms-coreComposer
Affected
>=13.0.0 <13.1.1
Fixed in
13.1.1
Update to the fixed version for your release line, for example:composer require typo3/cms-core:^13.1.1

Details

Problem

Failing to properly encode user-controlled values in file entities, the ShowImageController (_eID tx_cms_showpic_) is vulnerable to cross-site scripting. Exploiting this vulnerability requires a valid backend user account with access to file entities.

Solution

Update to TYPO3 versions 9.5.48 ELTS, 10.4.45 ELTS, 11.5.37 LTS, 12.4.15 LTS, 13.1.1 that fix the problem described.

Credits

Thanks to TYPO3 security team member Torben Hansen who reported this issue and to TYPO3 core & security team member Oliver Hader who fixed the issue.

References

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References

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