WordPress UpdraftPlus Plugin 2.22.14-2.23.2 is vulnerable to Broken Access Control
Risks
CVSS 8.8
This vulnerability is highly dangerous and expected to become mass exploited.
Broken Access Control
A broken access control issue refers to a missing authorization, authentication or nonce token check in a function that could lead to an unprivileged user to executing a certain higher privileged action.
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
We advise to mitigate or resolve the vulnerability immediately.
Update to version 2.23.3 or later.
Update to version 2.23.3 or later to remove the vulnerability. Patchstack users can turn on auto-update for vulnerable plugins only.
Automatically mitigate vulnerabilities and keep your websites safe
Patchstack has issued a virtual patch to mitigate this issue by blocking any attacks until you have updated to a fixed version.
Details
Note that this vulnerability affects the PRO version of the plugin. As the free and PRO version used the same slug, there is no way to differentiate between the two.
Timeline
Published by Patchstack
16 Mar 2023
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.
