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Vulnerability of TYPO3 Code Highlight: overload via Regular Expression

Synthesis of the vulnerability 

An attacker can trigger an overload via Regular Expression of TYPO3 Code Highlight, in order to trigger a denial of service.
Impacted software: TYPO3 Extensions ~ not comprehensive.
Severity of this computer vulnerability: 2/4.
Creation date: 16/03/2021.
Références of this announce: TYPO3-EXT-SA-2021-002, VIGILANCE-VUL-34858.

Description of the vulnerability 

An attacker can trigger an overload via Regular Expression of TYPO3 Code Highlig...
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This threat announce impacts software or systems such as TYPO3 Extensions ~ not comprehensive.

Our Vigil@nce team determined that the severity of this cybersecurity alert is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this security alert.

Solutions for this threat 

Solutions for this vulnerability are not yet public.
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