CVE-2021-24917

WPS Hide Login <= 1.9.0 - Hidden Login Page Location Disclosure

2021-10-27 00:00

Strategic Overview

Status: Patched in 1.9.1
Affected Plugin: WPS Hide Login
Affected Version: <= 1.9.0
CVSS: 5.3Medium
Weakness type: CWE-863 · Incorrect Authorization
CVE: CVE-2021-24917

At a glance

CVE-2021-24917 is a medium-severity Incorrect Authorization vulnerability in the WPS Hide Login WordPress plugin, affecting versions <= 1.9.0. 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 1.9.1; sites on affected versions should update now. Disclosed October 2021, reported by Daniel Ruf.

Vulnerability Overview

The WPS Hide Login WordPress plugin before 1.9.1 has a bug which allows to get the secret login page by setting a random referer string and making a request to /wp-admin/options.php as an unauthenticated user.

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-863: Incorrect Authorization

Reaching this weakness in WPS Hide Login <= 1.9.0 takes a caller who can reach the endpoint. Incorrect authorization means a permission check exists but evaluates the wrong thing, so it passes for callers it was meant to stop.

The action runs for users the code intended to exclude, with the same effect as having no check at all. For WPS Hide Login the fix is 1.9.1: builds <= 1.9.0 are affected, anything from 1.9.1 onward is not.

Remediation

Update to version 1.9.1, 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 1.9.1 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24917 https://www.wordfence.com/threat-intel/vulnerabilities/id/e0e503f4-5864-49f0-aa52-6a44af5e8087 https://nvd.nist.gov/vuln/detail/CVE-2021-24917

Related records

Same weakness class

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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