231 matches found
GHSA-5QHF-9PHG-95M2 Loofah `allowed_uri?` does not detect `javascript:` URIs split by numeric character references without semicolons
Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: or vbscript: URIs when the scheme is split by a numeric character reference that has no trailing semicolon. A browser decodes such references and resolves the URL to an executable javascript: scheme, while alloweduri?...
GHSA-9WJQ-CP2P-HRGF Loofah: SVG `href` attribute bypasses local-reference restriction
Summary Loofah's HTML5 sanitizer restricted only the xlink:href attribute on certain SVG elements to local, same-document references. Browsers also accept a plain href attribute as an alternative to the deprecated xlink:href per the SVG 2 spec, but Loofah did not apply the same restriction to it,...
GHSA-8WHX-365G-H9VV Loofah `allowed_uri?` does not detect `javascript:` URIs split by named whitespace character references
Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: URIs when the scheme is split or prefixed by the HTML5 named character references tab or line feed. This is a bypass of the fix for GHSA-46fp-8f5p-pf2m, which handled the equivalent numeric character references , , but...
Cross-site Scripting (XSS)
Overview loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the SVG sanitizer's handling of the href attribute, which restricts xlink:href on SVG...
Cross-site Scripting (XSS)
Overview loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the Loofah::HTML5::Scrub.alloweduri? method, which relies on CGI.unescapeHTML and...
Cross-site Scripting (XSS)
Overview loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the Loofah::HTML5::Scrub.alloweduri? method, which uses CGI.unescapeHTML and therefore...
Astra Linux – Vulnerability in ruby-rails-html-sanitizer
Rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Versions starting from 1.0.3 and before 1.4.4 are vulnerable to cross-site scripting through data URIs when used in conjunction with Loofah version 2.1.0 or higher. This issue has been fixed in version 1.4.4...
Astra Linux – Vulnerability in ruby-loofah
Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah = 2.1.0; versions less than 2.19.1 are vulnerable to cross-site scripting due to the image/svg+xml media type in data URIs. This issue has been fixed in version 2.19.1...
Astra Linux – Vulnerability in ruby-loofah
Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah = 2.2.0; versions before 2.19.1 use recursion to sanitize CDATA sections. This can lead to stack exhaustion and raise a SystemStackError exception, potentially causing ...
Astra Linux – Vulnerability in ruby-loofah
Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built upon Nokogiri. Loofah 2.19.1 contains a inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial ...
Loofah has improper detection of disallowed URIs via `allowed_uri?`
Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: URIs when the scheme is split by HTML entity-encoded control characters such as carriage return, line feed, or tab. Details The alloweduri? method strips literal control characters before decoding HTML entities. Payloa...
GHSA-2J22-PR5W-6GQ8 Loofah has improper detection of disallowed URIs via `allowed_uri?`
Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: URIs when the scheme is split by HTML entity-encoded control characters such as carriage return, line feed, or tab. Details The alloweduri? method strips literal control characters before decoding HTML entities. Payloa...
Cross-site Scripting (XSS)
Overview loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the Loofah::HTML5::Scrub.alloweduri? function. An attacker can inject malicious script...
GHSA-46FP-8F5P-PF2M Improper detection of disallowed URIs by Loofah `allowed_uri?`
Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: URIs when the scheme is split by HTML entity-encoded control characters such as carriage return, line feed, or tab. Details The alloweduri? method strips literal control characters before decoding HTML entities. Payloa...
Improper detection of disallowed URIs by Loofah `allowed_uri?`
Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: URIs when the scheme is split by HTML entity-encoded control characters such as carriage return, line feed, or tab. Details The alloweduri? method strips literal control characters before decoding HTML entities. Payloa...
ruby4.0-rubygem-loofah-2.23.1-1.5 on GA media (moderate)
ruby4.0-rubygem-loofah-2.23.1-1.5 on GA media Announcement ID: openSUSE-SU-2026:10353-1 Rating: moderate Cross-References: CVE-2018-16468 CVE-2018-8048 CVE-2019-15587 CVE-2022-23514 CVE-2022-23515 CVE-2022-23516 CVSS scores: CVE-2018-16468 SUSE : 6.4 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L...
OPENSUSE-SU-2026:10353-1 ruby4.0-rubygem-loofah-2.23.1-1.5 on GA media
These are all security issues fixed in the ruby4.0-rubygem-loofah-2.23.1-1.5 package on the GA media of openSUSE Tumbleweed...
GHSA-VFPF-XMWH-8M65 Duplicate Advisory: ProsemirrorToHtml has a Cross-Site Scripting (XSS) vulnerability through unescaped HTML attribute values
Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-52c5-vh7f-26fx. This link is maintained to preserve external references. Original Description Impact The prosemirrortohtml gem is vulnerable to Cross-Site Scripting XSS attacks through malicious HTML attribute...
