Is CVE-2018-7556 actively exploited?

No active exploitation of CVE-2018-7556 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-7556 be exploited remotely?

Yes. CVE-2018-7556 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-7556?

CVE-2018-7556 has a CVSS score of 9.1 (CRITICAL).

HOME VULNERABILITIESCVE-2018-7556

CRITICAL

CVE-2018-7556

CWE-200Published: February 28, 2018· Updated: Jun 17, 2026

9.1

CVSS v3.1

Official Description

LimeSurvey 2.6.x before 2.6.7, 2.7x.x before 2.73.1, and 3.x before 3.4.2 mishandles application/controller/InstallerController.php after installation, which allows remote attackers to access the configuration file.

NVD Source

Technical Analysis

CVE-2018-7556 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 9.1.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.