Is CVE-2019-5476 actively exploited?

No active exploitation of CVE-2019-5476 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-5476 be exploited remotely?

Yes. CVE-2019-5476 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-5476?

CVE-2019-5476 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2019-5476

CRITICAL

CVE-2019-5476

CWE-89Published: August 7, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An SQL Injection in the Nextcloud Lookup-Server < v0.3.0 (running on https://lookup.nextcloud.com) caused unauthenticated users to be able to execute arbitrary SQL commands.

NVD Source

Technical Analysis

CVE-2019-5476 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), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.