SiYuan through 3.7.3 contains a cross-site scripting vulnerability in the ‘((‘ block-reference autocomplete hint popup. In genHintItemHTML() (app\/src\/protyle\/hint\/extend.ts), a candidate block’s name, alias, and memo fields are concatenated into the popup’s HTML without escaping. An attacker who can set these metadata fields on a block can inject a self-firing payload (e.g. ) that executes automatically when a victim types ‘((‘ followed by a search term that surfaces the crafted block. Because SiYuan’s Electron windows run with nodeIntegration enabled, contextIsolation disabled, and no CSP, the injected script gains require(‘child_process’) access, allowing the XSS to escalate to arbitrary OS command execution.<\/p>\n","protected":false},"excerpt":{"rendered":"
SiYuan through 3.7.3 contains a cross-site scripting vulnerability in the ‘((‘ block-reference autocomplete hint popup. In genHintItemHTML() (app\/src\/protyle\/hint\/extend.ts), a candidate block’s name,<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-10540","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/10540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}