Advisory details:
github_osv / GHSA-jvf5-rxvv-3mcg
| Advisory ID | github_osv/GHSA-jvf5-rxvv-3mcg |
| Aliases |
CVE-2026-47344
|
| Summary | TYPO3 HTML Sanitizer allows Cross-site Scripting When `ALLOW_INSECURE_RAW_TEXT` is enabled, whitespace-variant closing tags (e.g., `</style\\t>`) are not recognized by the sanitizer but accepted by browsers as valid end tags, allowing subsequent content to escape sanitization. This allows bypassing the cross-site scripting prevention mechanism of `typo3/html-sanitizer` before version 2.3.2. Credits to IPC Labs for reporting this vulnerability. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 1.9 |
| Risk | 0.9 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 2.1 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-jvf5-rxvv-3mcg/GHSA-jvf5-rxvv-3mcg.json |
| generic_textual | LOW |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/html-sanitizer/CVE-2026-47344.yaml | ||
| https://github.com/TYPO3/html-sanitizer | ||
| https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-jvf5-rxvv-3mcg | ||
| bd1a88d9b5a5f67f1120ec41084e9c1a0675641c | Other | https://github.com/TYPO3/html-sanitizer/commit/bd1a88d9b5a5f67f1120ec41084e9c1a0675641c |
| CVE-2026-47344 | https://nvd.nist.gov/vuln/detail/CVE-2026-47344 | |
| typo3-core-sa-2026-006 | Advisory | https://typo3.org/security/advisory/typo3-core-sa-2026-006 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-06-08T19:50:27Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/47xxx/CVE-2026-47344.json
Source Advisory: vulnrichment/CVE-2026-47344
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]