{"cve":"CVE-2026-33143","nvd":{"published":"2026-03-20T21:17:14.933","modified":"2026-10-07T08:10:00.200","status":"Analyzed","description":"OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler (/notification/whatsapp/webhook) processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any unauthenticated attacker to send forged webhook payloads that manipulate notification delivery status records, suppress alerts, and corrupt audit trails. The codebase already implements proper signature verification for Slack webhooks. This issue has been patched in version 10.0.34.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-345"],"references":["https://github.com/OneUptime/oneuptime/security/advisories/GHSA-g5ph-f57v-mwjc"],"products":["hackerbay:oneuptime"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-33143","score":0.00185,"percentile":0.0806,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-g5ph-f57v-mwjc","url":"https://osv.dev/vulnerability/GHSA-g5ph-f57v-mwjc","summary":"OneUptime WhatsApp Webhook Missing Signature Verification","modified":"2026-03-20T21:59:53.041817Z","packages":[{"ecosystem":"npm","name":"oneuptime","purl":"pkg:npm/oneuptime","ranges":["<10.0.34"],"fixed":["10.0.34"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}