CVE-2023-47125: Typo3/html sanitizer Cross-Site Scripting Vulnerability
MODERATECVE-2023-47125 is a MODERATE (CVSS 4.7) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Typo3/html sanitizer libraries in the Packagist ecosystem. The issue involves bypassing cross-site scripting protection in typo3 html sanitizer. Remediation is available by upgrading affected packages to version 1.5.3, 2.1.4.
CVE-2023-47125 at a Glance
Security Impact
CVSS: 4.7
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N).
How to Fix CVE-2023-47125
To remediate this vulnerability, upgrade all affected Typo3/html sanitizer dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade typo3/html-sanitizer to 1.5.3Upgrade typo3/html-sanitizer to 2.1.4Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for typo3/html-sanitizerHow to Check if You Are Affected
To determine whether your application is affected by CVE-2023-47125, inspect your project dependencies for Typo3/html sanitizer:
inspect dependencies for typo3/html-sanitizerAnalyze the terminal output to locate any version of Typo3/html sanitizer in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.5.3), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Typo3/html sanitizer, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2023-47125 Affected Typo3/html sanitizer Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
typo3/html-sanitizer
|
Packagist |
≥ 1.0.0
< 1.5.3
|
1.5.3
|
|
typo3/html-sanitizer
|
Packagist |
≥ 2.0.0
< 2.1.4
|
2.1.4
|
References
Frequently Asked Questions
What is CVE-2023-47125?
Which Typo3/html sanitizer versions are affected?
What version fixes CVE-2023-47125?
Is typo3/html-sanitizer affected?
What is the CVSS score of CVE-2023-47125?
What CWE is associated with CVE-2023-47125?
How can I check Packagist dependencies for CVE-2023-47125?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-mm79-jhqm-9j54",
"modified" : "2023-11-15T18:15:24Z",
"published" : "2023-11-14T20:33:27Z",
"aliases" : [ "CVE-2023-47125" ],
"summary" : "Bypassing Cross-Site Scripting Protection in TYPO3 HTML Sanitizer",
"details" : "> ### 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)\n\n### Problem\nDOM 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).\n\n### Solution\nUpdate to `typo3/html-sanitizer` versions 1.5.3 or 2.1.4 that fix the problem described.\n\n### Credits\nThanks to Yaniv Nizry and Niels Dossche who reported this issue, and to TYPO3 core & security team member Oliver Hader who fixed the issue.\n\n### References\n* [TYPO3-CORE-SA-2023-007](https://typo3.org/security/advisory/typo3-core-sa-2023-007)\n* [Context & Details at `masterminds/html5`](https://github.com/Masterminds/html5-php/issues/241)",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/html-sanitizer"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.0.0"
}, {
"fixed" : "1.5.3"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 1.5.2"
}
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/html-sanitizer"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.0.0"
}, {
"fixed" : "2.1.4"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 2.1.3"
}
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-47125"
}, {
"type" : "WEB",
"url" : "https://github.com/TYPO3/html-sanitizer/commit/b8f90717251d968c49dc77f8c1e5912e2fbe0dff"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/TYPO3/html-sanitizer"
}, {
"type" : "WEB",
"url" : "https://typo3.org/security/advisory/typo3-core-sa-2023-007"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-79" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-11-14T20:33:27Z",
"nvd_published_at" : "2023-11-14T20:15:07Z"
}
}