CVE-2024-22027

Quiz Maker <= 6.5.0.5 - Denial of Service

2024-01-12 00:00

Strategic Overview

Status: Patched in 6.5.0.6
Affected Plugin: Quiz Maker by AYS
Affected Version: <= 6.5.0.5
CVSS: 5.3Medium
Weakness type: CWE-400 · Uncontrolled Resource Consumption
CVE: CVE-2024-22027

View all Quiz Maker by AYS vulnerabilities

At a glance

CVE-2024-22027 is a medium-severity Uncontrolled Resource Consumption vulnerability in the Quiz Maker by AYS WordPress plugin, affecting versions <= 6.5.0.5. 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 6.5.0.6; sites on affected versions should update now. Disclosed January 2024, reported by Shogo Kumamaru.

Vulnerability Overview

The Quiz Maker plugin for WordPress is vulnerable to denial of service in all versions up to, and including, 6.5.0.5. The cause is unknown This makes it possible for attackers to potentially deny access to resources.

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-400: Uncontrolled Resource Consumption

Reaching this weakness in Quiz Maker by AYS <= 6.5.0.5 takes a caller who can reach the endpoint. Uncontrolled resource consumption means a request can make the server do an amount of work it never bounds, because the size or repetition of the job is taken from the request rather than capped by the code.

A single caller can hold PHP workers, database connections or disk open long enough to slow the site for everyone, without needing any account or any other flaw. For Quiz Maker by AYS the fix is 6.5.0.6: builds <= 6.5.0.5 are affected, anything from 6.5.0.6 onward is not.

Remediation

Update to version 6.5.0.6, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Quiz Maker by AYS: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Quiz Maker by AYS 6.5.0.6 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-22027 https://www.wordfence.com/threat-intel/vulnerabilities/id/1e177e54-1a17-49d3-85b5-e4c6bf154320 https://nvd.nist.gov/vuln/detail/CVE-2024-22027

Related records

Other vulnerabilities in Quiz Maker by AYS

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityLow

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