{"id":"CVE-2026-3155","state":"PUBLISHED","title":"OneSignal – Web Push Notifications <= 3.8.0 - Missing Authorization to Authenticated (Subscriber+) Post Meta Deletion via 'post_id'","description":"The OneSignal – Web Push Notifications plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 3.8.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete OneSignal metadata for arbitrary posts.","publishedAt":"2026-04-16T11:21:22.226Z","updatedAt":"2026-04-16T14:00:56.681Z","severity":{"score":3.1,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["onesignal OneSignal – Web Push Notifications"],"affected":[{"vendor":"onesignal","product":"OneSignal – Web Push Notifications","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.8.0","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/58337bbc-ba10-4876-b91c-78657afc67d1?source=cve","https://plugins.trac.wordpress.org/changeset/3501190/onesignal-free-web-push-notifications"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3155.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3155","state":"PUBLISHED","datePublished":"2026-04-16T11:21:22.226Z","dateUpdated":"2026-04-16T14:00:56.681Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-02-24T20:34:14.733Z"},"containers":{"cna":{"title":"OneSignal – Web Push Notifications <= 3.8.0 - Missing Authorization to Authenticated (Subscriber+) Post Meta Deletion via 'post_id'","descriptions":[{"lang":"en","value":"The OneSignal – Web Push Notifications plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 3.8.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete OneSignal metadata for arbitrary posts."}],"affected":[{"vendor":"onesignal","product":"OneSignal – Web Push Notifications","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.8.0","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/58337bbc-ba10-4876-b91c-78657afc67d1?source=cve"},{"url":"https://plugins.trac.wordpress.org/changeset/3501190/onesignal-free-web-push-notifications"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","baseScore":3.1,"baseSeverity":"LOW"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862 Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-16T11:21:22.226Z"},"credits":[{"lang":"en","type":"finder","value":"Muhammad Sharief"}],"timeline":[{"time":"2026-02-24T20:50:42.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-04-15T21:51:29.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-16T13:57:39.644438Z","id":"CVE-2026-3155","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-16T14:00:56.681Z"}}]}}}