{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119731","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-30T15:31:52.078Z","datePublished":"2026-11-02T18:54:28.988Z","dateUpdated":"2026-11-02T18:54:28.988Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-02T18:54:28.988Z"},"title":"Munshi Payment Bypass via Unauthenticated Webhook Endpoint","descriptions":[{"lang":"en","value":"Munshi (by Petpooja) before 2026-06-30 contained a payment bypass vulnerability in its subscription payment webhook at POST /api/payment/order/webhook, which lacks webhook authentication, cryptographic signature verification, source validation, and independent server-side confirmation with the payment provider. A remote, unauthenticated attacker can submit a forged payment-success notification referencing an order obtained from the payment-status redirect URL, causing the backend to mark the subscription as paid/active and granting paid access without an actual successful payment."}],"tags":["exclusively-hosted-service"],"datePublic":"2026-10-30T00:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","description":"Insufficient Verification of Data Authenticity","cweId":"CWE-345","type":"CWE"},{"lang":"en","description":"Missing Authentication for Critical Function","cweId":"CWE-306","type":"CWE"}]}],"affected":[{"defaultStatus":"unaffected","vendor":"Petpooja","product":"Munshi","versions":[{"status":"affected","version":"0","versionType":"date","lessThanOrEqual":"2026-06-30"}]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.7,"vectorString":"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"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE","version":"3.1","baseSeverity":"HIGH","baseScore":7.5,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}}],"references":[{"url":"https://medium.com/@TheWildEye/payment-bypass-in-munshi-forging-a-phonepe-webhook-to-activate-an-unpaid-subscription-ce0806829fa4","name":"Researcher Disclosure","tags":["technical-description","exploit"]},{"url":"https://www.petpooja.com/","name":"Vender Homepage","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/munshi-payment-bypass-via-unauthenticated-webhook-endpoint","name":"VulnCheck Advisory: Munshi Payment Bypass via Unauthenticated Webhook Endpoint","tags":["third-party-advisory"]}],"credits":[{"lang":"en","value":"Vyom Nagpal","type":"finder"}],"x_generator":{"engine":"vulncheck"}}}}