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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| typo3/cms | composer | >= 4.4, < 4.4.15 | 4.4.15 |
| typo3/cms | composer | >= 4.5, < 4.5.15 | 4.5.15 |
| typo3/cms | composer | >= 4.6, < 4.6.8 | 4.6.8 |
| typo3/cms | composer | = 4.7 |
The vulnerability stems from unencoded exception message output in TYPO3's core ExceptionHandler. The primary vulnerable function is handleException() which directly controls error page rendering. While no patch diffs are available, security advisories explicitly identify the Exception Handler component as the vulnerable area. The writeLog method is included as secondary due to its role in processing exception messages, though its direct exploitability depends on logging configuration.
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