Two essential safety flaws impacting the Spam safety, Anti-Spam, and FireWall plugin WordPress might enable an unauthenticated attacker to put in and allow malicious plugins on inclined websites and probably obtain distant code execution.
The vulnerabilities, tracked as CVE-2024-10542 and CVE-2024-10781, carry a CVSS rating of 9.8 out of a most of 10.0. They had been addressed in variations 6.44 and 6.45 launched this month.
Put in on over 200,000 WordPress websites, CleanTalk’s Spam safety, Anti-Spam, FireWall plugin is marketed as a “common anti-spam plugin” that blocks spam feedback, registrations, surveys, and extra.
In keeping with Wordfence, each vulnerabilities concern an authorization bypass challenge that would enable a malicious actor to put in and activate arbitrary plugins. This might then pave the way in which for distant code execution if the activated plugin is weak of its personal.
The plugin is “weak to unauthorized Arbitrary Plugin Set up because of a lacking empty worth verify on the ‘api_key’ worth within the ‘carry out’ perform in all variations as much as, and together with, 6.44,” safety researcher István Márton mentioned, referring to CVE-2024-10781.
Alternatively, CVE-2024-10542 stems from an authorization bypass through reverse DNS spoofing on the checkWithoutToken() perform.
Whatever the bypass methodology, profitable exploitation of the 2 shortcomings might enable an attacker to put in, activate, deactivate, and even uninstall plugins.
Customers of the plugin are suggested to make sure that their websites are up to date to the newest patched model to safeguard in opposition to potential threats.
The event comes as Sucuri has warned of a number of campaigns which might be leveraging compromised WordPress websites to inject malicious code liable for redirecting web site guests to different websites through bogus advertisements, skimming login credentials, in addition to drop malware that captures admin passwords, redirects to VexTrio Viper rip-off websites, and execute arbitrary PHP code on the server.