CVE-2023-47125
Bypassing Cross-Site Scripting Protection in TYPO3 HTML Sanitizer
Description
> ### CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C` (4.4) ### Problem DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of [`typo3/html-sanitizer`](https://packagist.org/packages/typo3/html-sanitizer). ### Solution Update to `typo3/html-sanitizer` versions 1.5.3 or 2.1.4 that fix the problem described. ### Credits Thanks to Yaniv Nizry and Niels Dossche who reported this issue, and to TYPO3 core & security team member Oliver Hader who fixed the issue. ### References * [TYPO3-CORE-SA-2023-007](https://typo3.org/security/advisory/typo3-core-sa-2023-007) * [Context & Details at `masterminds/html5`](https://github.com/Masterminds/html5-php/issues/241)
How to fix CVE-2023-47125
To remediate CVE-2023-47125, upgrade the affected package to a fixed version below.
- —upgrade to 8.7.55 or later
- —upgrade to 1.5.3 or later
Is CVE-2023-47125 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 8.7.42, < 8.7.55, >= 9.5.29, < 9.5.44, >= 10.4.19, < 10.4.41, >= 11.3.2, < 11.5.33, >= 12.0.0, < 12.4.8
- >= 1.0.0, < 1.5.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |