{"basis":"claimed","id":"CVE-2021-39341","name":"OptinMonster <= 2.6.4 Unprotected REST-API Endpoints","vendorProject":"OptinMonster","product":"OptinMonster","publishedAt":"2021-11-01","cvss":{"score":8.2,"severity":"HIGH","version":"3.1"},"exploited":null,"epss":{"score":0.21929,"percentile":0.97654,"date":"2026-11-02"},"coverage":{"cloudflare":{"status":"no_history","firstOn":null,"daysToRule":null},"aws":{"status":"none","firstOn":null,"daysToRule":null},"azure":{"status":"none","firstOn":null,"daysToRule":null},"google":{"status":"no_history","firstOn":null,"daysToRule":null},"fastly":{"status":"no_history","firstOn":null,"daysToRule":null},"f5":{"status":"rule","firstOn":"2025-08-15","daysToRule":1383},"akamai":{"status":"no_source","firstOn":null,"daysToRule":null},"crs":{"status":"no_history","firstOn":null,"daysToRule":null}},"title":"OptinMonster <= 2.6.4 Unprotected REST-API Endpoints","description":"The OptinMonster WordPress plugin is vulnerable to sensitive information disclosure and unauthorized setting updates due to insufficient authorization validation via the logged_in_or_has_api_key function in the ~/OMAPI/RestApi.php file that can used to exploit inject malicious web scripts on sites with the plugin installed. This affects versions up to, and including, 2.6.4.","cwes":["CWE-285","CWE-319"],"vendors":[{"vendor":"cloudflare","status":"no_history","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"aws","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"azure","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"google","status":"no_history","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"fastly","status":"no_history","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"f5","status":"rule","basis":"claimed","firstOn":"2025-08-15","firstIsNew":true,"daysToRule":1383,"daysAtMost":null,"freePlan":false,"claims":[{"id":"09ebf9ce07a21de351d1535d1751e35f868cd0a1ff2875f081dff5e4234e9cf1","cve_id":"CVE-2021-39341","vendor":"f5","product":"Attack signatures","rule_id":"200009335","rule_name":"WordPress OptinMonster Information Disclosure","change":"new","default_action":null,"published_on":"2025-08-15","source_url":"https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog","source_title":"F5 Distributed Cloud attack signatures changelog","excerpt":"Added: signature 200009335 \"WordPress OptinMonster Information Disclosure\" (Information Leakage, risk Medium), systems: WordPress. References: CVE-2021-39341.","first_seen_at":"2026-11-02T21:00:25.702Z"}]},{"vendor":"akamai","status":"no_source","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"crs","status":"no_history","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]}],"updatedAt":"2026-11-02T21:05:18.107Z","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial"},"measured":[{"engineId":"owasp-crs","engineName":"OWASP Core Rule Set","engineVersion":"4.25.0","runtime":"Coraza v3.8.1","config":"paranoia level 1, anomaly threshold 5, default CRS settings","ranAt":"2026-11-02T13:02:57.000Z","verdict":"blocked","templateId":"CVE-2021-39341","templatePath":"http/cves/2021/CVE-2021-39341.yaml","requests":1,"blockedRequests":1,"rules":["920450"],"note":"","requestDetail":[{"method":"OPTIONS","path":"/wp-json/omapp/v1/support","status":403,"blocked":true,"rules":["920450"]}]},{"engineId":"owasp-crs","engineName":"OWASP Core Rule Set","engineVersion":"4.25.0","runtime":"Coraza v3.8.1","config":"paranoia level 2, anomaly threshold 5, default CRS settings","ranAt":"2026-11-02T13:03:28.000Z","verdict":"blocked","templateId":"CVE-2021-39341","templatePath":"http/cves/2021/CVE-2021-39341.yaml","requests":1,"blockedRequests":1,"rules":["920450"],"note":"","requestDetail":[{"method":"OPTIONS","path":"/wp-json/omapp/v1/support","status":403,"blocked":true,"rules":["920450"]}]}],"social":{"total":0,"first_seen":null,"daily":[{"day":"2026-10-21","posts":0},{"day":"2026-10-22","posts":0},{"day":"2026-10-23","posts":0},{"day":"2026-10-24","posts":0},{"day":"2026-10-25","posts":0},{"day":"2026-10-26","posts":0},{"day":"2026-10-27","posts":0},{"day":"2026-10-28","posts":0},{"day":"2026-10-29","posts":0},{"day":"2026-10-30","posts":0},{"day":"2026-10-31","posts":0},{"day":"2026-11-01","posts":0},{"day":"2026-11-02","posts":0},{"day":"2026-11-03","posts":0}],"top_posts":[],"exploit_repositories":[]}}