{"identifier":"CVE-2026-34912","cve":{"id":"CVE-2026-34912","description":"A missing access control check when linking banners or campaigns to a zone through the zone-include.php script of Revive Adserver 6.0.6 and earlier, or via its API allows a low‑privileged user could link their zones to banners or campaigns owned by other managers on the same instance, resulting in inconsistent ownership relationships. Ownership validation has been added to ensure that banners and campaigns can only be linked to zones managed by the same account.","published":"2026-06-23T17:16:53.483000+00:00","modified":"2026-10-26T11:10:00.157000+00:00","status":"Deferred","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","cvss_version":"3.0","affected":[],"weaknesses":["CWE-284"],"references":[{"url":"https://hackerone.com/reports/3650504","source":"support@hackerone.com"}],"kev":null,"kev_checked":true,"metrics":{"cvssMetricV30":[{"source":"support@hackerone.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-23T17:41:45.454939Z","id":"CVE-2026-34912","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[],"source":"nvd","retrieved_at":"2026-10-28T10:25:47.923923+00:00","exploited":false,"kev_stale":false,"products":[],"priority":{"label":"Assess exposure and vendor guidance","reasons":["No higher-priority signal is available in the current stored evidence."]},"epss":{"probability":0.0027,"percentile":0.19185,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"hackerone.com","source_url":"https://hackerone.com/reports/3650504","investigate_url":"https://investigate.aeglixmind.com/#hackerone.com"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2026-34912","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2026-34912","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2026-34912","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}