Cross-site scripting via whitespace-variant raw-text end tags
Published Jun 8, 2026 · Updated Jun 8, 2026
Cross-site scripting in TYPO3 HTML Sanitizer before 2.3.2 allows remote authenticated users to execute script in a victim's browser. Its raw-text tokenizer fails to recognize whitespace before a closing-tag delimiter, although browsers accept that syntax, so later attacker-controlled markup escapes sanitization. Exploitation requires ALLOW_INSECURE_RAW_TEXT, low-privileged content submission, and a victim to render the result; script runs only in the victim's browser context.
Summary
What happened
Cross-site scripting in TYPO3 HTML Sanitizer before 2.3.2 allows remote authenticated users to execute script in a victim's browser. Its raw-text tokenizer fails to recognize whitespace before a closing-tag delimiter, although browsers accept that syntax, so later attacker-controlled markup escapes sanitization. Exploitation requires ALLOW_INSECURE_RAW_TEXT, low-privileged content submission, and a victim to render the result; script runs only in the victim's browser context.
The record
- CVE
- CVE-2026-47344
- Published
- Jun 8, 2026
- Updated
- Jun 8, 2026
- Vendor
- in2code GmbH
- Product
- HTML Sanitizer
- Classifications
- CWE-436, CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 8, 2026CVE publishedPublication date reported by the CVE source.
- Jun 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <2.3.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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Technologies
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Your stack
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