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Vulnerability details: VCID-qw91-ryx7-fqhz
Vulnerability ID VCID-qw91-ryx7-fqhz
Aliases CVE-2023-47125
GHSA-mm79-jhqm-9j54
Summary Bypassing Cross-Site Scripting Protection in TYPO3 HTML Sanitizer > ### 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)
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00341 https://api.first.org/data/v1/epss?cve=CVE-2023-47125
epss 0.00341 https://api.first.org/data/v1/epss?cve=CVE-2023-47125
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-mm79-jhqm-9j54
cvssv3.1 4.7 https://github.com/TYPO3/html-sanitizer
generic_textual MODERATE https://github.com/TYPO3/html-sanitizer
cvssv3.1 4.7 https://github.com/TYPO3/html-sanitizer/commit/b8f90717251d968c49dc77f8c1e5912e2fbe0dff
generic_textual MODERATE https://github.com/TYPO3/html-sanitizer/commit/b8f90717251d968c49dc77f8c1e5912e2fbe0dff
ssvc Track https://github.com/TYPO3/html-sanitizer/commit/b8f90717251d968c49dc77f8c1e5912e2fbe0dff
cvssv3.1 4.7 https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54
cvssv3.1_qr MODERATE https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54
generic_textual MODERATE https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54
ssvc Track https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54
cvssv3.1 4.7 https://nvd.nist.gov/vuln/detail/CVE-2023-47125
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2023-47125
cvssv3.1 4.7 https://typo3.org/security/advisory/typo3-core-sa-2023-007
generic_textual MODERATE https://typo3.org/security/advisory/typo3-core-sa-2023-007
ssvc Track https://typo3.org/security/advisory/typo3-core-sa-2023-007
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-47125
https://github.com/TYPO3/html-sanitizer
https://github.com/TYPO3/html-sanitizer/commit/b8f90717251d968c49dc77f8c1e5912e2fbe0dff
https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54
https://nvd.nist.gov/vuln/detail/CVE-2023-47125
https://typo3.org/security/advisory/typo3-core-sa-2023-007
GHSA-mm79-jhqm-9j54 https://github.com/advisories/GHSA-mm79-jhqm-9j54
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/TYPO3/html-sanitizer
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/TYPO3/html-sanitizer/commit/b8f90717251d968c49dc77f8c1e5912e2fbe0dff
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-08-29T20:25:20Z/ Found at https://github.com/TYPO3/html-sanitizer/commit/b8f90717251d968c49dc77f8c1e5912e2fbe0dff
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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physical

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-08-29T20:25:20Z/ Found at https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-47125
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://typo3.org/security/advisory/typo3-core-sa-2023-007
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-08-29T20:25:20Z/ Found at https://typo3.org/security/advisory/typo3-core-sa-2023-007
Exploit Prediction Scoring System (EPSS)
Percentile 0.56071
EPSS Score 0.00341
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:15:31.522650+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-mm79-jhqm-9j54/GHSA-mm79-jhqm-9j54.json 36.1.3