Максим Кочкин

**Name of the Vulnerable Software and Affected Versions** lxml versions prior to 3.3.5 **Description** The issue is related to an incomplete blacklist vulnerability in the `lxml.html.clean` module, which allows remote attackers to conduct cross-site scripting (XSS) attacks via control characters in the link scheme to the `clean html` function. This can lead to a violation of the integrity of protected information. The exploitation of this vulnerability can be carried out remotely. **Recommendations** For versions prior to 3.3.5, update to version 3.3.5 or later to resolve the issue. As a temporary workaround, consider restricting the use of the `lxml.html.clean` module until a patch is available. Avoid using the `clean html` function in the affected module to minimize the risk of exploitation.