CVE-2026-16250: CWE-434 Unrestricted Upload of File with Dangerous Type in Personal QR Message
The Personal QR Message WordPress plugin through 1.0 does not restrict the file types that can be uploaded through an unauthenticated handler, allowing unauthenticated users to upload arbitrary executable PHP files that are directly reachable, leading to remote code execution.
AI Analysis
Technical Summary
CVE-2026-16250 is a critical vulnerability in the Personal QR Message WordPress plugin through version 1.0. The plugin fails to restrict file types during upload via an unauthenticated handler, allowing attackers to upload arbitrary executable PHP files. These files are directly reachable, which can lead to remote code execution on the affected system. The vulnerability is classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). No patch or official remediation has been confirmed as of the published date.
Potential Impact
Successful exploitation allows unauthenticated attackers to execute arbitrary code remotely by uploading malicious PHP files. This can lead to full system compromise, data theft, or further attacks on the hosting environment. The CVSS score of 9.8 reflects the critical nature of this vulnerability with high confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, it is recommended to restrict file upload permissions, disable the vulnerable plugin if possible, or implement web application firewall (WAF) rules to block unauthorized file uploads targeting this plugin.
CVE-2026-16250: CWE-434 Unrestricted Upload of File with Dangerous Type in Personal QR Message
Description
The Personal QR Message WordPress plugin through 1.0 does not restrict the file types that can be uploaded through an unauthenticated handler, allowing unauthenticated users to upload arbitrary executable PHP files that are directly reachable, leading to remote code execution.
CVSS v3.1
Score 9.8critical
Affected software
Personal QR Message
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16250 is a critical vulnerability in the Personal QR Message WordPress plugin through version 1.0. The plugin fails to restrict file types during upload via an unauthenticated handler, allowing attackers to upload arbitrary executable PHP files. These files are directly reachable, which can lead to remote code execution on the affected system. The vulnerability is classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). No patch or official remediation has been confirmed as of the published date.
Potential Impact
Successful exploitation allows unauthenticated attackers to execute arbitrary code remotely by uploading malicious PHP files. This can lead to full system compromise, data theft, or further attacks on the hosting environment. The CVSS score of 9.8 reflects the critical nature of this vulnerability with high confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, it is recommended to restrict file upload permissions, disable the vulnerable plugin if possible, or implement web application firewall (WAF) rules to block unauthorized file uploads targeting this plugin.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-20T07:19:47.202Z
- State
- PUBLISHED
Threat ID: 6a70364ebf32cb7a3418311e
Added to database: 08/03/2026, 06:33:50 UTC
Last enriched: 08/10/2026, 14:47:04 UTC
Last updated: 09/17/2026, 22:01:33 UTC
Views: 58
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.