CVE-2026-26980
📋 TL;DR
CVE-2026-26980 is an SQL injection vulnerability in Ghost CMS that allows unauthenticated attackers to read arbitrary data from the database. This affects Ghost versions 3.24.0 through 6.19.0. The vulnerability enables attackers to extract sensitive information including user credentials, content, and configuration data.
💻 Affected Systems
- Ghost CMS
📦 What is this software?
Ghost by Ghost
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to credential theft, sensitive content exposure, and potential privilege escalation to full system takeover.
Likely Case
Unauthenticated attackers extracting user data, passwords, API keys, and private content from vulnerable Ghost instances.
If Mitigated
Limited data exposure if database contains minimal sensitive information and proper network segmentation is in place.
🎯 Exploit Status
SQL injection vulnerabilities are typically easy to exploit once details are known. The advisory suggests specific endpoints are vulnerable.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.19.1
Vendor Advisory: https://github.com/TryGhost/Ghost/security/advisories/GHSA-w52v-v783-gw97
Restart Required: Yes
Instructions:
1. Backup your Ghost instance and database. 2. Update Ghost using npm: 'npm install ghost@6.19.1'. 3. Restart the Ghost service: 'ghost restart'. 4. Verify the update with 'ghost version'.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict access to Ghost admin interface and API endpoints to trusted IP addresses only.
Use firewall rules to limit access to Ghost ports (typically 2368)
Web Application Firewall
allDeploy WAF with SQL injection protection rules to block exploitation attempts.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Ghost instances from sensitive systems
- Enable comprehensive logging and monitoring for database query anomalies
🔍 How to Verify
Check if Vulnerable:
Check Ghost version with 'ghost version' or in Ghost admin panel. Versions 3.24.0 to 6.19.0 inclusive are vulnerable.Check Version:
ghost versionVerify Fix Applied:
Confirm version is 6.19.1 or higher using 'ghost version' command.📡 Detection & Monitoring
Log Indicators:
- Unusual database query patterns
- Multiple failed authentication attempts followed by SQL-like queries
- Requests to vulnerable endpoints with SQL injection payloads
Network Indicators:
- Unusual traffic to Ghost API endpoints from unauthenticated sources
- SQL error messages in HTTP responses
SIEM Query:
source="ghost.log" AND ("SQL" OR "database" OR "query") AND status=200 AND user="anonymous"