CVE-2026-6147: CWE-434 Unrestricted Upload of File with Dangerous Type in lightsyncpro LightSync Pro – Connect & Sync Cloud Assets | Lightroom, Canva, Figma, Dropbox & Shutterstock
The LightSync Pro plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the rest_replace_media() function in all versions up to, and including, 2.1.6. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
AI Analysis
Technical Summary
CVE-2026-6147 is a vulnerability in the LightSync Pro WordPress plugin (up to and including version 2.1.6) caused by the lack of file type validation in the rest_replace_media() function. This allows authenticated users with Author-level permissions or higher to upload arbitrary files to the affected server. Such unrestricted file upload can lead to remote code execution if malicious files are uploaded and executed. The vulnerability is categorized under CWE-434 (Unrestricted Upload of File with Dangerous Type). No known exploits are reported in the wild, and no official fix or patch has been published as of the data provided.
Potential Impact
An attacker with Author-level access or above can upload arbitrary files to the server hosting the vulnerable LightSync Pro plugin. This can lead to remote code execution, compromising the confidentiality, integrity, and availability of the affected system. The CVSS v3.1 base score is 8.8, indicating a high impact with network attack vector, low attack complexity, and no user interaction required.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Author-level access and above to trusted users only. Monitor for suspicious file uploads and consider disabling or removing the plugin if possible.
CVE-2026-6147: CWE-434 Unrestricted Upload of File with Dangerous Type in lightsyncpro LightSync Pro – Connect & Sync Cloud Assets | Lightroom, Canva, Figma, Dropbox & Shutterstock
Description
The LightSync Pro plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the rest_replace_media() function in all versions up to, and including, 2.1.6. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-6147 is a vulnerability in the LightSync Pro WordPress plugin (up to and including version 2.1.6) caused by the lack of file type validation in the rest_replace_media() function. This allows authenticated users with Author-level permissions or higher to upload arbitrary files to the affected server. Such unrestricted file upload can lead to remote code execution if malicious files are uploaded and executed. The vulnerability is categorized under CWE-434 (Unrestricted Upload of File with Dangerous Type). No known exploits are reported in the wild, and no official fix or patch has been published as of the data provided.
Potential Impact
An attacker with Author-level access or above can upload arbitrary files to the server hosting the vulnerable LightSync Pro plugin. This can lead to remote code execution, compromising the confidentiality, integrity, and availability of the affected system. The CVSS v3.1 base score is 8.8, indicating a high impact with network attack vector, low attack complexity, and no user interaction required.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Author-level access and above to trusted users only. Monitor for suspicious file uploads and consider disabling or removing the plugin if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-04-12T17:39:58.926Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a72e5c9bf8831d53973512e
Added to database: 08/05/2026, 07:27:05 UTC
Last enriched: 08/05/2026, 07:43:38 UTC
Last updated: 08/06/2026, 02:07:12 UTC
Views: 4
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