CVE-2019-15823

WPS Hide Login <= 1.5.2.2 - Login Page Disclosure via 'action=confirmaction'

2019-07-23 00:00

Strategic Overview

Status: Patched in 1.5.3
Affected Plugin: WPS Hide Login
Affected Version: < 1.5.3
CVSS: 5.3Medium
Weakness type: CWE-285 · Improper Authorization
CVE: CVE-2019-15823

At a glance

CVE-2019-15823 is a medium-severity Improper Authorization vulnerability in the WPS Hide Login WordPress plugin, affecting versions < 1.5.3. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.5.3; sites on affected versions should update now. Disclosed July 2019, reported by Julio Potier.

Vulnerability Overview

The WPS Hide Login plugin for WordPress is vulnerable to login page disclosure in versions up to, and including, 1.5.2.2. This is due to a bypass that is created when the 'action=confirmaction' parameter is supplied. This makes it possible for attackers to easily discover any login page that may have been hidden by the plugin.

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.

CWE-285: Improper Authorization

Reaching this weakness in WPS Hide Login < 1.5.3 takes a caller who can reach the endpoint. Improper authorization means a permission check exists but does not cover the case being exercised, so a caller who is allowed to do one thing is allowed to do a neighbouring thing as well.

A lower-privileged account performs an action reserved for a higher one, which on a multi-author or membership site means an ordinary user reaching administrative behaviour. For WPS Hide Login the fix is 1.5.3: builds < 1.5.3 are affected, anything from 1.5.3 onward is not.

Remediation

Update to version 1.5.3, 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: WPS Hide Login 1.5.3 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-15823 https://www.wordfence.com/threat-intel/vulnerabilities/id/db3724bf-35bb-4e28-b5e2-1bbc96adc7b6 https://nvd.nist.gov/vuln/detail/CVE-2019-15823

Related records

Other vulnerabilities in WPS Hide Login

CVSS Vector

5.3

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

Base

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

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