CVE-2023-47769

WP Maintenance <= 6.1.3 - IP Restriction Bypass

2023-11-14 00:00

Strategic Overview

Status: Patched in 6.1.4
Affected Plugin: WP Maintenance
Affected Version: <= 6.1.3
CVSS: 5.3Medium
Weakness type: CWE-348 · Use of Less Trusted Source
CVE: CVE-2023-47769

At a glance

CVE-2023-47769 is a medium-severity Use of Less Trusted Source vulnerability in the WP Maintenance WordPress plugin, affecting versions <= 6.1.3. 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 6.1.4; sites on affected versions should update now. Disclosed November 2023, reported by Kévin Mosbahi (Mika).

Vulnerability Overview

The WP Maintenance plugin for WordPress is vulnerable to IP Address Restriction Bypass in versions up to, and including, 6.1.3. This can be used to bypass settings that may have blocked out an IP address from accessing a page on the site.

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-348: Use of Less Trusted Source

The product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.

Remediation

Update to version 6.1.4, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WP Maintenance: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Maintenance 6.1.4 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-47769 https://www.wordfence.com/threat-intel/vulnerabilities/id/87a1cc00-330c-40c3-a174-8ea50075c4bd https://nvd.nist.gov/vuln/detail/CVE-2023-47769

Related records

Same weakness class

5.3CVE-2024-0789: WP Maintenance IP Spoofing to Maintenance Mode BypassCVE-2024-0789

Other vulnerabilities in WP Maintenance

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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