CVE-2023-51542

Branda <= 3.4.14 - IP Address Spoofing

2023-12-27 00:00

Strategic Overview

Status: Patched in 3.4.15
Affected Plugin: Branda – White Label & Branding, Free Login Page Customizer
Affected Version: <= 3.4.14
CVSS: 5.3Medium
Weakness type: CWE-348 · Use of Less Trusted Source
CVE: CVE-2023-51542

View all Branda – White Label & Branding, Free Login Page Customizer vulnerabilities

At a glance

CVE-2023-51542 is a medium-severity Use of Less Trusted Source vulnerability in the Branda WordPress plugin, affecting versions <= 3.4.14. 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 3.4.15; sites on affected versions should update now. Disclosed December 2023, reported by Brandon James Roldan (tomorrowisnew).

Vulnerability Overview

The Branda – White Label WordPress, Custom Login Page Customizer plugin for WordPress is vulnerable to IP Address Spoofing in all versions up to, and including, 3.4.14 due to insufficient IP address validation and use of user-supplied HTTP headers as a primary method for IP retrieval. This makes it possible for unauthenticated attackers to bypass comment allow/deny lists.

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 3.4.15, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Branda: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Branda 3.4.15 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-51542 https://www.wordfence.com/threat-intel/vulnerabilities/id/552bc1cc-df98-4608-a50e-db1381ca8e0a https://nvd.nist.gov/vuln/detail/CVE-2023-51542

Related records

Other vulnerabilities in Branda – White Label & Branding, Free Login Page Customizer

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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