GHSA-X6G4-FWCC-JJ8W Symfony has XXE (Local File Disclosure) in DomCrawler::addXmlContent() via validateOnParse = true

Description symfony/dom-crawler provides the Crawler class for navigating HTML/XML documents with CSS/XPath selectors; symfony/browser-kit's HttpBrowser uses it to parse fetched pages. Crawler::addXmlContent sets DOMDocument::$validateOnParse = true before calling loadXML. Setting validateOnParse...