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GHSA-chqj-j4fh-rw7m
No affected components available
Versions of dompurify prior to 2.0.3 are vulnerable to Cross-Site Scripting (XSS). The package has an XSS filter bypass due to Mutation XSS in both Chrome and Safari through a combination of <svg>/<math> elements and </p>/</br>. An example payload is: <svg></p><style><a id="</style><img src=1 onerror=alert(1)>">. This allows attackers to bypass the XSS protection and execute arbitrary JavaScript in a victim's browser.
Recommendation
Upgrade to version 2.0.3 or later. You may also disallow <svg> and <math> through dompurify configurations:
FORBID_TAGS: ['svg', 'math']
});```
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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