CWE-611

Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri before version 1.11.0.rc4 there is an XXE vulnerability. XML Schemas parsed by Nokogiri::XML::Schema are trusted by default, allowing external resources to be accessed over the network, potentially enabling XXE or SSRF attacks. This behavior is counter to the security policy followed by Nokogiri maintainers, which is to treat all input as untrusted by default whenever possible. This is fixed in Nokogiri version 1.11.0.rc4.

A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).

A XML External Entity (XXE) vulnerability was discovered in symphonylibtoolkitclass.xmlelement.php in Symphony 2.7.10 which can lead to an information disclosure or denial of service (DOS).

SilverStripe through 4.6.0-rc1 has an XXE Vulnerability in CSSContentParser. A developer utility meant for parsing HTML within unit tests can be vulnerable to XML External Entity (XXE) attacks. When this developer utility is misused for purposes involving external or user submitted data in custom project code, it can lead to vulnerabilities such as XSS on HTML output rendered through this custom code. This is now mitigated by disabling external entities during parsing. (The correct CVE ID year is 2020 [CVE-2020-25817, not CVE-2021-25817]).

** UNSUPPORTED WHEN ASSIGNED ** An issue was discovered in DotPlant2 before 2020-09-14. In class Pay2PayPayment in payment/Pay2PayPayment.php, there is an XXE vulnerability in the checkResult function. The user input ($_POST[‘xml’]) is used for simplexml_load_string without sanitization. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.