CVE-2015-9387

mTouch Quiz <= 3.1.2 - Cross-Site Request Forgery

2015-12-18 00:00

Strategic Overview

Status: Patched in 3.1.3
Affected Plugin: mTouch Quiz
Affected Version: < 3.1.3
CVSS: 6.5Medium
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2015-9387

At a glance

CVE-2015-9387 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the mTouch Quiz WordPress plugin, affecting versions < 3.1.3. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high integrity impact). Exploitation requires no authentication. The issue is fixed in version 3.1.3; sites on affected versions should update now. Disclosed December 2015, reported by David Sopas.

Vulnerability Overview

The mtouch-quiz plugin before 3.1.3 for WordPress has wp-admin/options-general.php CSRF.

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. A successful exploit has high impact on integrity.

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

Reaching this weakness in mTouch Quiz < 3.1.3 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 mTouch Quiz the fix is 3.1.3: builds < 3.1.3 are affected, anything from 3.1.3 onward is not.

Remediation

Update to version 3.1.3, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to mTouch Quiz: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: mTouch Quiz 3.1.3 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2015-9387 https://www.wordfence.com/threat-intel/vulnerabilities/id/f9fcd12b-bcc8-48cb-a077-ccf1bc4ff276 https://nvd.nist.gov/vuln/detail/CVE-2015-9387

Related records

Same weakness class

8.8CVE-2015-9388: mTouch Quiz <= 3.1.2 CSRF to Cross-Site ScriptingCVE-2015-9388

Other vulnerabilities in mTouch Quiz

CVSS Vector

6.5

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

Base

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

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