CVE-2022-46862

Quiz And Survey Master <= 8.0.7 - Cross-Site Request Forgery

2022-12-16 00:00

Strategic Overview

Status: Patched in 8.0.8
Affected Plugin: Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker
Affected Version: <= 8.0.7
CVSS: 4.3Medium
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2022-46862

View all Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker vulnerabilities

At a glance

CVE-2022-46862 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Quiz and Survey Master (QSM) WordPress plugin, affecting versions <= 8.0.7. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 8.0.8; sites on affected versions should update now. Disclosed December 2022, reported by Oliver K..

Vulnerability Overview

The Quiz And Survey Master plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 8.0.7. This is due to missing or incorrect nonce validation on the qsm_update_text_message function. This makes it possible for unauthenticated attackers to invoke this function leading to quiz modifications, via forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Quiz and Survey Master (QSM) <= 8.0.7 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Quiz and Survey Master (QSM) the fix is 8.0.8: builds <= 8.0.7 are affected, anything from 8.0.8 onward is not.

Remediation

Update to version 8.0.8, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Quiz and Survey Master (QSM): WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Quiz and Survey Master (QSM) 8.0.8 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-46862 https://www.wordfence.com/threat-intel/vulnerabilities/id/88dc4a77-0d81-4d90-9a43-cc4d3055e39c https://nvd.nist.gov/vuln/detail/CVE-2022-46862

Related records

Same weakness class

Other vulnerabilities in Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker

CVSS Vector

4.3

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

Base

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

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