CVE-2026-6670: Path Traversal in Media Sync WordPress Plugin
Platform
wordpress
Component
media-sync
Fixed in
1.5.0
CVE-2026-6670 describes a Path Traversal vulnerability affecting the Media Sync plugin for WordPress. This flaw allows authenticated attackers, specifically those with Author-level access or higher, to potentially access sensitive files outside the intended uploads directory. The vulnerability impacts versions 1.0.0 through 1.4.9 and has been resolved in version 1.5.0.
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Impact and Attack Scenarios
An attacker exploiting this Path Traversal vulnerability could read arbitrary files on the server. This includes potentially sensitive configuration files, database credentials, or other application data. While the vulnerability requires authentication (Author access or higher), this is a relatively low barrier to entry for many WordPress installations. Successful exploitation could lead to information disclosure, and in some cases, could be a stepping stone for further attacks, such as gaining shell access if sensitive credentials are exposed. The blast radius is limited to the server hosting the WordPress instance and the files accessible by the attacker.
Exploitation Context
The vulnerability was published on 2026-05-14. There is no indication of active exploitation campaigns targeting this vulnerability at the time of writing. The EPSS score is pending evaluation. Public Proof-of-Concept (POC) code is likely to emerge given the relatively straightforward nature of Path Traversal vulnerabilities.
Threat Intelligence
Exploit Status
CISA SSVC
CVSS Vector
What do these metrics mean?
- Attack Vector
- Network — remotely exploitable over the internet. No physical or local access required. Widest attack surface.
- Attack Complexity
- Low — no special conditions required. Attacker can exploit reliably without depending on rare configurations or timing.
- Privileges Required
- Low — any valid user account is sufficient. Basic authenticated access required.
- User Interaction
- None — attack is automatic and silent. Victim does nothing: no click, no file open.
- Scope
- Unchanged — impact is limited to the vulnerable component itself.
- Confidentiality
- High — complete confidentiality loss. Attacker can read all data: credentials, keys, personal data.
- Integrity
- None — no integrity impact. Attacker cannot modify data.
- Availability
- None — no availability impact. Service remains fully operational.
Affected Software
Weakness Classification (CWE)
Timeline
- Reserved
- Published
Mitigation and Workarounds
The primary mitigation for CVE-2026-6670 is to upgrade the Media Sync plugin to version 1.5.0 or later. If upgrading is not immediately feasible due to compatibility issues or testing requirements, consider implementing a Web Application Firewall (WAF) rule to block requests containing directory traversal sequences (e.g., ../) in the subdir and mediaitems parameters. Additionally, restrict file upload permissions to the intended uploads directory. After upgrading, verify the fix by attempting to access a file outside the uploads directory via the vulnerable parameters; the request should be denied.
How to fix
Update to version 1.5.0, or a newer patched version
Frequently asked questions
What is CVE-2026-6670 — Path Traversal in Media Sync WordPress Plugin?
CVE-2026-6670 is a security vulnerability in the Media Sync WordPress plugin allowing authenticated users to access files outside the intended uploads directory. It affects versions 1.0.0–1.4.9 and is classified as a Path Traversal vulnerability.
Am I affected by CVE-2026-6670 in Media Sync WordPress Plugin?
You are affected if your WordPress website uses the Media Sync plugin in versions 1.0.0 through 1.4.9. Check your plugin versions immediately to determine your risk level.
How do I fix CVE-2026-6670 in Media Sync WordPress Plugin?
Upgrade the Media Sync plugin to version 1.5.0 or later. If immediate upgrade is not possible, implement a WAF rule to block directory traversal attempts and restrict file upload permissions.
Is CVE-2026-6670 being actively exploited?
There is currently no evidence of active exploitation campaigns targeting CVE-2026-6670, but public POCs are likely to emerge.
Where can I find the official Media Sync advisory for CVE-2026-6670?
Refer to the Media Sync plugin's official website or WordPress plugin repository for the latest advisory and update information regarding CVE-2026-6670.
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