{"id":"CVE-2026-14933","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-14933","generatedAt":"2026-10-28T01:49:03.762Z","title":"Cross-site scripting in the embedded co-browsing feature in Unblu inc.","description":"Cross-site scripting in the embedded co-browsing feature in Unblu inc. Unblu Spark 7.0 through 7.57.7 and 8.0 through 8.39.2, on on-premises and cloud deployments, allows an unauthenticated remote attacker in the visitor role to execute arbitrary JavaScript in the browser of an agent taking part in the attacker's co-browsing session, via content of the co-browsed page that the agent's browser renders as HTML.\n\n\n\nThe JavaScript runs in the context and under the identity of the agent's session in the Agent Desk or the Single Conversation Desk.\n\n\n\nExploitation requires an agent to join an embedded co-browsing session with the attacker. Mobile co-apping isn't affected.","published":"2026-10-20T12:17:30.000Z","lastModified":"2026-10-20T19:28:53.000Z","status":"Deferred","sourceIdentifier":"vulnerability@ncsc.ch","cvss":{"version":"4.0","score":8.6,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-79"],"affected":[],"epss":{"score":0.0056,"percentile":0.46337,"date":"2026-10-26","history":[{"date":"2026-10-21","score":0.0056,"percentile":0.45773}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-20T12:17:30.000Z","detail":{"score":"8.6","severity":"HIGH","publishedAt":"2026-10-20T12:17:30.057Z"},"summary":"New CVE, high severity (CVSS 8.6)."}],"references":[{"url":"https://docs.unblu.com/latest/security-bulletins/#UBL-2026-004","source":"vulnerability@ncsc.ch"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-14933","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}