CVE-2023-6421

Download Manager <= 3.2.82 - Unauthenticated Password Leak

2023-11-29 00:00

Strategic Overview

Status: Patched in 3.2.83
Affected Plugin: Download Manager
Affected Version: <= 3.2.82
CVSS: 5.3Medium
Weakness type: CWE-863 · Incorrect Authorization
CVE: CVE-2023-6421

View all Download Manager vulnerabilities

At a glance

CVE-2023-6421 is a medium-severity Incorrect Authorization vulnerability in the Download Manager WordPress plugin, affecting versions <= 3.2.82. 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 3.2.83; sites on affected versions should update now. Disclosed November 2023, reported by Liu Shaohong.

Vulnerability Overview

The Download Manager plugin for WordPress is vulnerable to information Exposure in all versions up to, and including, 3.2.82. This is due to the plugin leaking the password to a protected file when it receives an invalid password. This makes it possible for unauthenticated attackers to gain access to protected files.

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 Download Manager <= 3.2.82 takes no account at all. 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 Download Manager the fix is 3.2.83: builds <= 3.2.82 are affected, anything from 3.2.83 onward is not.

Remediation

Update to version 3.2.83, 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: Download Manager 3.2.83 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-6421 https://www.wordfence.com/threat-intel/vulnerabilities/id/5f9cece7-a158-41ae-816b-1054da830724 https://nvd.nist.gov/vuln/detail/CVE-2023-6421

Related records

Other vulnerabilities in Download Manager

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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