{"basis":"claimed","id":"CVE-2025-7783","name":"Usage of unsafe random function in form-data for choosing boundary","vendorProject":null,"product":null,"publishedAt":"2025-07-18","cvss":{"score":9.4,"severity":"CRITICAL","version":"4.0"},"exploited":null,"epss":{"score":0.0181,"percentile":0.78613,"date":"2026-11-02"},"coverage":{"cloudflare":{"status":"blocks","firstOn":"2025-10-06","daysToRule":80},"aws":{"status":"none","firstOn":null,"daysToRule":null},"azure":{"status":"none","firstOn":null,"daysToRule":null},"google":{"status":"none","firstOn":null,"daysToRule":null},"fastly":{"status":"no_history","firstOn":null,"daysToRule":null},"f5":{"status":"rule","firstOn":"2025-08-24","daysToRule":37},"akamai":{"status":"no_source","firstOn":null,"daysToRule":null},"crs":{"status":"none","firstOn":null,"daysToRule":null}},"title":"Usage of unsafe random function in form-data for choosing boundary","description":"Use of Insufficiently Random Values vulnerability in form-data allows HTTP Parameter Pollution (HPP). This vulnerability is associated with program files lib/form_data.Js.\n\nThis issue affects form-data: < 2.5.4, 3.0.0 - 3.0.3, 4.0.0 - 4.0.3.","cwes":["CWE-330"],"vendors":[{"vendor":"cloudflare","status":"blocks","basis":"claimed","firstOn":"2025-10-06","firstIsNew":true,"daysToRule":80,"daysAtMost":null,"freePlan":false,"claims":[{"id":"cd174f0a53689aaf4650b1133a397d877bc13f20683c69d7fe63d80517b53c83","cve_id":"CVE-2025-7783","vendor":"cloudflare","product":"Cloudflare Managed Ruleset","rule_id":"05eea4fabf6f4cf3aac1094b961f26a7","rule_name":"Form-Data - Parameter Pollution - CVE:CVE-2025-7783","change":"new","default_action":"Block","published_on":"2025-10-06","source_url":"https://developers.cloudflare.com/changelog/post/2025-10-06-waf-release/","source_title":"WAF Release - 2025-10-06","excerpt":"Form-Data - Parameter Pollution - CVE:CVE-2025-7783. Previous action: Log. New action: Block. This is a New Detection","first_seen_at":"2026-11-02T21:00:15.788Z"}]},{"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":"none","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":"2025-08-24","firstIsNew":true,"daysToRule":37,"daysAtMost":null,"freePlan":false,"claims":[{"id":"c86d118e29b78fee6a1235c7578309c559ecfc109c02e8a079e834c90d5de9d6","cve_id":"CVE-2025-7783","vendor":"f5","product":"Attack signatures","rule_id":"200018195","rule_name":"form_data.Js HTTP Parameter Pollution","change":"new","default_action":null,"published_on":"2025-08-24","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 200018195 \"form_data.Js HTTP Parameter Pollution\" (Other Application Attacks, risk High), systems: JavaScript. References: CVE-2025-7783.","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":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]}],"updatedAt":"2026-11-02T21:17:16.518Z","cvssVector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total"},"measured":[],"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":[]}}