mozilla bleach vulnerabilities and exploits

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An issue exists in Bleach 2.1.x prior to 2.1.3. Attributes that have URI values weren't properly sanitized if the values contained character entities. Using character entities, it was possible to construct a URI value with a scheme that was not allowed that would slide throu...

Mozilla Bleach 2.1 Mozilla Bleach 2.1.2 Mozilla Bleach 2.1.1

A mutation XSS affects users calling bleach.clean with all of: svg or math in the allowed tags p or br in allowed tags style, title, noscript, script, textarea, noframes, iframe, or xmp in allowed tags the keyword argument strip_comments=False Note: none of the above tags are in ...

bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style...

1 Github repository

In Mozilla Bleach prior to 3.12, a mutation XSS in bleach.clean when RCDATA and either svg or math tags are whitelisted and the keyword argument strip=False.

Mozilla Bleach Fedoraproject Fedora 33

1 Github repository

In Mozilla Bleach prior to 3.11, a mutation XSS affects users calling bleach.clean with noscript and a raw tag in the allowed/whitelisted tags option.

Mozilla Bleach Fedoraproject Fedora 30 Fedoraproject Fedora 31 Fedoraproject Fedora 32

2 Github repositories

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