{"id":"BIT-ghost-2026-53950","summary":"@tryghost/activitypub: XSS in Ghost's ActivityPub client","details":"@tryghost/activitypub is Ghost’s social/federation client app. Prior to 3.1.0, the ActivityPub client in Ghost was vulnerable to JavaScript injection on posts shared by a maliciously customised ActivityPub server. This vulnerability is fixed in 3.1.0.","aliases":["CVE-2026-53950","GHSA-xpp7-93x6-v29m"],"modified":"2026-07-08T08:11:30.819999995Z","published":"2026-06-30T23:39:27.609Z","database_specific":{"cpes":["cpe:2.3:a:ghost:ghost:*:*:*:*:*:node.js:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-xpp7-93x6-v29m"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53950"}],"affected":[{"package":{"name":"ghost","ecosystem":"Bitnami","purl":"pkg:bitnami/ghost"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.1.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2026-53950.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.7.5"}