Appointment Booking Calendar <= 1.3.34 - CSV Injection

2020-03-04 00:00

Daniel Monzón

Strategic Overview

Status

Patched in 1.3.35

Affected PluginAppointment Booking Calendar

Affected Version< 1.3.35

CVSS7.8High

CVECVE-2020-9372

View all Appointment Booking Calendar vulnerabilities

Vulnerability Overview

The Appointment Booking Calendar plugin before 1.3.35 for WordPress allows user input (in fields such as Description or Name) in any booking form to be any formula, which then could be exported via the Bookings list tab in /wp-admin/admin.php?page=cpabc_appointments.php. The attacker could achieve remote code execution via CSV injection.

Technical Analysis

REMEDIATION: Update to version 1.3.35, or a newer patched version --- IDENTIFIER: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')) The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

External References

https://www.cve.org/CVERecord?id=CVE-2020-9372 https://www.wordfence.com/threat-intel/vulnerabilities/id/25b26369-76e3-44f0-8275-03fc6fc9705c

CVSS Vector

7.8

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

Base

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

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