CVE-2023-47125: TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions DOM processing instructions are not h...

Description

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer. This vulnerability has been addressed in versions 1.5.3 and 2.1.4. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.57%

43.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Typo3	Html Sanitizer	>= 1.0.0, < 1.5.3
Typo3	Html Sanitizer	>= 2.0.0, < 2.1.4
Typo3	Typo3	>= 8.7.42, < 8.7.55
Typo3	Typo3	>= 9.5.29, < 9.5.44
Typo3	Typo3	>= 10.4.19, < 10.4.41
Typo3	Typo3	>= 11.3.2, < 11.5.33
Typo3	Typo3	>= 12.0.0, < 12.4.8

References

Timeline

Published: Nov 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-47125?

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer. This vulnerability has been addressed in versions 1.5.3 and 2.1.4. Users are advised to upgrade. There are no known workarounds for this vulnerability.

How severe is CVE-2023-47125?

CVE-2023-47125 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.

How do I fix CVE-2023-47125?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.