CVE-2025-66125

Ultimate Auction <= 4.3.3 - Unauthenticated Information Exposure

2025-12-12 00:00

Strategic Overview

Status: Patched in 4.3.4
Affected Plugin: Ultimate WordPress Auction
Affected Version: <= 4.3.3
CVSS: 5.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2025-66125

View all Ultimate WordPress Auction vulnerabilities

At a glance

CVE-2025-66125 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Ultimate WordPress Auction WordPress plugin, affecting versions <= 4.3.3. 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 4.3.4; sites on affected versions should update now. Disclosed December 2025, reported by daroo.

Vulnerability Overview

The Ultimate WordPress Auction Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.3.3. This makes it possible for unauthenticated attackers to extract sensitive user or configuration data.

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-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in Ultimate WordPress Auction <= 4.3.3 takes no account at all. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For Ultimate WordPress Auction the fix is 4.3.4: builds <= 4.3.3 are affected, anything from 4.3.4 onward is not.

Remediation

Update to version 4.3.4, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: Ultimate WordPress Auction 4.3.4 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-66125 https://www.wordfence.com/threat-intel/vulnerabilities/id/f5733ed6-a6f8-40f1-80b2-ab09fca02791 https://nvd.nist.gov/vuln/detail/CVE-2025-66125

Related records

Other vulnerabilities in Ultimate WordPress Auction

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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