CVE-2019-12498

WP Live Chat Support <= 8.0.32 - Unprotected Functions

2019-05-31 00:00

Strategic Overview

Status: Patched in 8.0.33
Affected Plugin: 3CX Free Live Chat, Calls & Messaging
Affected Version: < 8.0.33
CVSS: 9.8Critical
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2019-12498

View all 3CX Free Live Chat, Calls & Messaging vulnerabilities

At a glance

CVE-2019-12498 is a critical-severity Missing Authorization vulnerability in the 3CX Free Live Chat, Calls & Messaging WordPress plugin, affecting versions < 8.0.33. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 8.0.33; sites on affected versions should update now. Disclosed May 2019.

Vulnerability Overview

The WP Live Chat Support plugin before 8.0.33 for WordPress accepts certain REST API calls without invoking the wplc_api_permission_check protection mechanism.

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 privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-862: Missing Authorization

Reaching this weakness in 3CX Free Live Chat, Calls & Messaging < 8.0.33 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For 3CX Free Live Chat, Calls & Messaging the fix is 8.0.33: builds < 8.0.33 are affected, anything from 8.0.33 onward is not.

Remediation

Update to version 8.0.33, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: 3CX Free Live Chat, Calls & Messaging 8.0.33 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-12498 https://www.wordfence.com/threat-intel/vulnerabilities/id/90689ba2-4f82-4116-85d7-1266189aa34e https://nvd.nist.gov/vuln/detail/CVE-2019-12498

Related records

Other vulnerabilities in 3CX Free Live Chat, Calls & Messaging

CVSS Vector

9.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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