CVE-2016-10916

Appointment Booking Calendar <= 1.1.23 - SQL Injection

2016-01-25 00:00

Strategic Overview

Status: Patched in 1.1.24
Affected Plugin: Appointment Booking Calendar
Affected Version: < 1.1.24
CVSS: 9.8Critical
Weakness type: CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE: CVE-2016-10916

View all Appointment Booking Calendar vulnerabilities

At a glance

CVE-2016-10916 is a critical-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Appointment Booking Calendar WordPress plugin, affecting versions < 1.1.24. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.1.24; sites on affected versions should update now. Disclosed January 2016.

Vulnerability Overview

The appointment-booking-calendar plugin before 1.1.24 for WordPress has SQL injection, a different vulnerability than CVE-2015-7319.

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. 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 Appointment Booking Calendar < 1.1.24 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 Appointment Booking Calendar the fix is 1.1.24: builds < 1.1.24 are affected, anything from 1.1.24 onward is not.

Remediation

Update to version 1.1.24, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Appointment Booking Calendar: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Appointment Booking Calendar 1.1.24 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2016-10916 https://www.wordfence.com/threat-intel/vulnerabilities/id/4b704c42-181b-47cb-9df8-3b82f7b830e1 https://nvd.nist.gov/vuln/detail/CVE-2016-10916

Related records

Same weakness class

Other vulnerabilities in Appointment Booking Calendar

CVSS Vector

9.8

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

Base

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

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