CVE-2026-27760
⚠️ highSummary
OpenCATS prior to commit 3002a29 contains a PHP code injection vulnerability in the installer AJAX endpoint that allows unauthenticated attackers to execute arbitrary code by injecting PHP statements into the databaseConnectivity action parameter. Attackers can break out of the define() string context in config.php using a single quote and statement separator to inject malicious PHP code that persists and executes on every subsequent page load when the installation wizard remains incomplete.
CVSS Score
8.1
High
EPSS Score
22.2
Exploit Probability
Published Date
2026-04-28
First Seen: 2026-07-15
📊 Relative Risk Intelligence
This CVE is High Risk - more severe than 77.4% of all 335,187 vulnerabilities in our database.
#75,716
Top 25% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: Apr 28, 2026
🔍 Exploitation Status
Poc
Proof-of-concept available
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Total
Complete system compromise possible
🏆 Discovered By
Valentin Lobstein (Chocapikk)
VulnCheck (coordinator)
SSVC data provided by
CISA
Last Modified
2026-07-14
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Vector 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)