CVE-2019-19983

Fast Velocity Minify <= 2.7.6 - Full Path Disclosure

2019-10-16 00:00

Strategic Overview

Status: Patched in 2.7.7
Affected Plugin: Fast Velocity Minify
Affected Version: <= 2.7.6
CVSS: 4.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2019-19983

View all Fast Velocity Minify vulnerabilities

At a glance

CVE-2019-19983 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Fast Velocity Minify WordPress plugin, affecting versions <= 2.7.6. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The issue is fixed in version 2.7.7; sites on affected versions should update now. Disclosed October 2019, reported by Chloe Chamberland.

Vulnerability Overview

In the WordPress plugin, Fast Velocity Minify before 2.7.7, the full web root path to the running WordPress application can be discovered. In order to exploit this vulnerability, FVM Debug Mode needs to be enabled and an admin-ajax request needs to call the fastvelocity_min_files action.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in Fast Velocity Minify <= 2.7.6 takes a caller who can reach the endpoint. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For Fast Velocity Minify the fix is 2.7.7: builds <= 2.7.6 are affected, anything from 2.7.7 onward is not.

Remediation

Update to version 2.7.7, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Fast Velocity Minify 2.7.7 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-19983 https://www.wordfence.com/threat-intel/vulnerabilities/id/ea13aebb-c853-4828-8d7f-b607aa83b702 https://nvd.nist.gov/vuln/detail/CVE-2019-19983

Related records

Other vulnerabilities in Fast Velocity Minify

4.4CVE-2025-12034: Fast Velocity Minify <= 3.5.1 Stored XSSCVE-2025-12034

CVSS Vector

4.3

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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