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GHSA-8j9v-h2vp-2hhv
No affected components available
Impact
If you have explicitly allowed the <style> tag, an attacker could craft HTML that includes script after passing through the sanitizer. The default settings disallow the <style> tag so there is no risk if you have not explicitly allowed the <style> tag.
Patches
The problem has been fixed in version 5.0.372.
Workarounds
Remove the <style> tag from the set of allowed tags.
For more information
If you have any questions or comments about this advisory open an issue in https://github.com/mganss/HtmlSanitizer
Credits
This issue was discovered by Michal Bentkowski of Securitum.
The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. 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 high 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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