CVE-2016-10949

Relevanssi Premium < 1.14.6.1 - SQL Injection

2016-11-17 00:00

Strategic Overview

Status: Patched in 1.14.6.1
Affected Plugin: Relevanssi Premium
Affected Version: < 1.14.6.1
CVSS: 8.8High
Weakness type: CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE: CVE-2016-10949

View all Relevanssi Premium vulnerabilities

At a glance

CVE-2016-10949 is a high-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Relevanssi Premium WordPress plugin, affecting versions < 1.14.6.1. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.14.6.1; sites on affected versions should update now. Disclosed November 2016, reported by Glyn Wintle.

Vulnerability Overview

The Relevanssi Premium plugin before 1.14.6.1 for WordPress has SQL injection with resultant unsafe unserialization.

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 confidentiality, integrity, availability — full site compromise territory.

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Reaching this weakness in Relevanssi Premium < 1.14.6.1 takes a caller who can reach the endpoint. SQL injection happens when request data is concatenated into a query instead of being bound as a parameter, letting an attacker change the structure of the statement rather than just its values.

A working injection can read any table the database user can see, which on a WordPress install means user records, password hashes and session or API secrets stored in options. For Relevanssi Premium the fix is 1.14.6.1: builds < 1.14.6.1 are affected, anything from 1.14.6.1 onward is not.

Remediation

Update to version 1.14.6.1, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Relevanssi Premium: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Relevanssi Premium 1.14.6.1 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2016-10949 https://www.wordfence.com/threat-intel/vulnerabilities/id/342b2e81-fb26-416a-8f3d-4bc221260228 https://nvd.nist.gov/vuln/detail/CVE-2016-10949

Related records

Same weakness class

Other vulnerabilities in Relevanssi Premium

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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