CVE-2026-93953 — The Backuply – Backup, Restore, Migrate and Clone plugin for WordPress is vulnerable to…¶
Key facts
CVE-2026-93953 is a High (8.0) vulnerability: The Backuply – Backup, Restore, Migrate and Clone plugin for WordPress is vulnerable to…. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-93953 |
| Severity | High (8.0) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-93953/ |
Details¶
English | 한국어
Description¶
The Backuply – Backup, Restore, Migrate and Clone plugin for WordPress is vulnerable to SQL Injection via the Biographical Info field (second-order, via restore) in all versions up to, and including, 1.5.8 due to insufficient escaping on the user supplied parameter and the lack of sufficient preparation on an existing SQL query. Backuply exports the Biographical Info value verbatim inside an INSERT statement written to the backup's SQL dump (wp_usermeta). When an Administrator later restores such a backup, the crafted payload breaks out of that INSERT statement and appends attacker-controlled SQL that executes with full database privileges. This makes it possible for authenticated attackers, with subscriber-level access and above, to write arbitrary data to the database — in particular to update the default_role option in wp_options to administrator (and enable open user registration) — so that a subsequently registered account is automatically granted the Administrator role, resulting in privilege escalation and full site takeover. Because the injection executes inside an INSERT during restore with no response returned to the attacker, the primitive is used to modify database records rather than to read existing data directly.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-93953 |
| Type | SQLI |
| CVSS Score | 8.0 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-93953/poc.py
Usage¶
# Run PoC against target
python3 poc.py --target <TARGET_URL>
# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>
⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.
Test Lab¶
This repository includes a Docker-based test environment with both vulnerable and patched applications.
Quick Start¶
# Clone and navigate to CVE directory
cd CVE-2026-93953
# Start both applications
docker-compose up -d
# Run tests
./run-tests.sh # Linux/Mac
./run-tests.ps1 # Windows PowerShell
Application Endpoints¶
| Application | URL | Status |
|---|---|---|
| Vulnerable App | http://localhost:8080 | Shows vulnerability |
| Patched App | http://localhost:8081 | Demonstrates fix |
Directory Structure¶
├── README.md # English documentation
├── README_KO.md # Korean documentation
├── poc.py # PoC detection script
├── docker-compose.yml # Container orchestration
├── run-tests.sh # Linux/Mac test runner
├── run-tests.ps1 # Windows test runner
├── vulnerable-app/ # Vulnerable version
│ ├── app.py
│ ├── Dockerfile
│ └── requirements.txt
└── patched-app/ # Fixed version
├── app.py
├── Dockerfile
└── requirements.txt
References¶
- https://plugins.trac.wordpress.org/browser/backuply/tags/1.5.7/backup_ins.php#L140
- https://plugins.trac.wordpress.org/browser/backuply/tags/1.5.7/backup_ins.php#L592
- https://plugins.trac.wordpress.org/browser/backuply/tags/1.5.7/restore_ins.php#L2247
- https://plugins.trac.wordpress.org/browser/backuply/tags/1.5.7/restore_ins.php#L2255
- https://plugins.trac.wordpress.org/changeset/3723257/backuply
- https://www.wordfence.com/threat-intel/vulnerabilities/id/202a2d02-a069-43d1-9ebe-59828e828c03?source=cve
Generated by PoC Generator on 2026-10-16T22:36:50.273094298
Frequently asked questions¶
What is CVE-2026-93953?¶
CVE-2026-93953 is a High (8.0) vulnerability: The Backuply – Backup, Restore, Migrate and Clone plugin for WordPress is vulnerable to…. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-93953?¶
Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.
How do I block or mitigate CVE-2026-93953?¶
Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.
For authorized security testing and research only. See the full source and NVD record.