WordPress Appointment Booking Calendar Plugin <= 1.3.34 is vulnerable to CSV Injection
Risks
CVSS 7.8
CSV Injection
This could allow a malicious actor to craft malicious formulas to then exploit vulnerabilities in the spreadsheet software or to execute commands to gain access to the victim';s PC.
This is a general description of this vulnerability type, specific impact varies case by case. CVSS score is a way to evaluate and rank reported vulnerabilities in a standardized and repeatable way, but it is not ideal for WordPress.
Solutions
This security issue has a low severity impact and is unlikely to be exploited.
Update to version 1.3.35 or later.
Update to version 1.3.35 or later to remove the vulnerability. Patchstack users can turn on auto-update for vulnerable plugins only.
Timeline
Early warning sent out to Patchstack customers
12 Mar 2020
Published by Patchstack
14 Mar 2020
Plugin page
Over 70% of all known WordPress vulnerabilities were originally published by Patchstack in 2023 and hundreds of popular plugins such as Elementor, RankMath and WProcket have set Patchstack as their official security partner.
Patchstack vPatching auto-mitigates security vulnerabilities even when there's no official patch available. It's the fastest and most effective way to eliminate new security vulnerabilities without sacrificing performance.
Hackers automate attacks against new security vulnerabilities to take over as many websites as they can before users have time to patch and update. The attacks are opportunistic and victims are not chosen - everyone is a target.
We recommend reaching out to your hosting provider for server-side malware scanning or use a professional incident response service. Don't rely on plugin based malware scanners as they are commonly tampered with by malware.
