# CVE-2026-119731: Munshi Payment Bypass via Unauthenticated Webhook Endpoint

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Petpooja / Munshi: ≥ 0; ≤ 2026-06-30 (affected, date). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.7 (high); 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; source: CNA: VulnCheck

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-345, CWE-306

## Exploit evidence

- exploit: https://medium.com/@TheWildEye/payment-bypass-in-munshi-forging-a-phonepe-webhook-to-activate-an-unpaid-subscription-ce0806829fa4 (CNA: VulnCheck)

## References

- https://medium.com/@TheWildEye/payment-bypass-in-munshi-forging-a-phonepe-webhook-to-activate-an-unpaid-subscription-ce0806829fa4 (CNA: VulnCheck; technical-description, exploit)

- https://www.petpooja.com/ (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/munshi-payment-bypass-via-unauthenticated-webhook-endpoint (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-119731; retrieved 2026-11-02; source updated 2026-11-02

Revision: bb1dee34637a36bf14e51d21a013d4284ce8e9d2d2f17bb4621afaa39bee8a5a

Canonical: https://y2.dev/cve/CVE-2026-119731

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- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

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