MISP contains a stored cross-site script (XSS) vulnerability in the event graph preview feature.<\/p>\n
The event graph preview image field was accepted and stored without server-side validation. On the client side, the stored value was rendered into an HTML img element’s src attribute via string concatenation, allowing a crafted value to break out of the attribute context and inject arbitrary script.<\/p>\n
Preconditions:<\/p>\n
– An authenticated MISP user with the ability to create or modify an event graph entry.<\/p>\n
– A second user (the victim) who views the event graph and triggers the preview popover.<\/p>\n
Impact:<\/p>\n
– Execution of arbitrary JavaScript in the victim’s browser within the MISP application context.<\/p>\n
– Potential theft of session tokens, cookies, or sensitive data accessible to the victim’s browser.<\/p>\n
– Potential for performing actions on behalf of the victim within the MISP application.<\/p>\n
Affected: MISP versions prior to the fix (commit applied after v2.5.48).<\/p>\n","protected":false},"excerpt":{"rendered":"
MISP contains a stored cross-site script (XSS) vulnerability in the event graph preview feature.<\/p>\n
The event graph preview image field was accepted and stored without server-side validation. On the cli<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-31162","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/31162","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=31162"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31162"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}