{"id":"CVE-2026-48612","state":"PUBLISHED","title":"Improper state verification in the OAuth implementation could allow an attacker to manipulate the authentication flow and cause a victim’s account to be linked to an attacker-contr","description":"Improper state verification in the OAuth implementation could allow an attacker to manipulate the authentication flow and cause a victim’s account to be linked to an attacker-controlled account. This can result in unauthorized account linking and potential account takeover.","publishedAt":"2026-06-12T02:27:43.506Z","updatedAt":"2026-06-12T14:35:26.012Z","severity":{"score":8,"label":"High","version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","source":"hackerone"},"assigner":"hackerone","products":["phpBB phpBB"],"affected":[{"vendor":"phpBB","product":"phpBB","defaultStatus":"unaffected","versions":[{"version":"3.3.0","status":"affected","lessThanOrEqual":"3.3.16","versionType":"semver"}]}],"references":["https://www.phpbb.com/community/viewtopic.php?t=2672170"],"weaknesses":["CWE-352"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/48xxx/CVE-2026-48612.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-48612","state":"PUBLISHED","datePublished":"2026-06-12T02:27:43.506Z","dateUpdated":"2026-06-12T14:35:26.012Z","assignerShortName":"hackerone","assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateReserved":"2026-05-22T15:00:09.276Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Improper state verification in the OAuth implementation could allow an attacker to manipulate the authentication flow and cause a victim’s account to be linked to an attacker-controlled account. This can result in unauthorized account linking and potential account takeover."}],"affected":[{"vendor":"phpBB","product":"phpBB","defaultStatus":"unaffected","versions":[{"version":"3.3.0","status":"affected","lessThanOrEqual":"3.3.16","versionType":"semver"}]}],"references":[{"url":"https://www.phpbb.com/community/viewtopic.php?t=2672170"}],"metrics":[{"cvssV3_0":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","baseScore":8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-352","type":"CWE","lang":"en","description":"CWE-352 Cross-Site Request Forgery (CSRF)"}]}],"providerMetadata":{"shortName":"hackerone","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateUpdated":"2026-06-12T02:27:43.506Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-12T14:32:45.468321Z","id":"CVE-2026-48612","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-12T14:35:26.012Z"}}]}}}