WordPress: Jetpack vulnerability discovered. Millions of users at risk
Learn how the Jetpack plugin vulnerability puts WordPress sites at risk and what to do to protect them
A vulnerability in the Jetpack WordPress plugin allowed users to read other people's forms. Discovered in version 3.9.9, it prompted Jetpack to release multiple patches. It is recommended to update now to avoid future risks to sensitive user data.
A critical vulnerability has recently been discovered in the popular WordPress plugin Jetpack, used on millions of websites worldwide. Jetpack is known for its security enhancement features, performance optimization, and a set of tools for growing websites, including backups and traffic analysis. One of the affected components of these tools is the Contact Form module, which allows you to easily add spam-protected contact forms. The vulnerability, discovered in the contact form feature of version 3.9.9, could allow logged-in users to read forms submitted by other users. Although there are no reports of exploitation of the flaw, the urgency of an update has been emphasized by the Jetpack development team.
Updates and patches: the Jetpack team's work
To address the security flaw, the Jetpack team worked closely with the WordPress.org plugin team, releasing patches for every version of the plugin since 3.9.9. A total of 101 patches were released, demonstrating the team’s unwavering commitment to ensuring the security of their user base. The list of available updates includes multiple versions, most recently 13.9.1, 13.8.2, and 13.7.1. Attention to detail when it comes to security is crucial, given the vast number of active Jetpack installations on the web today. This rapid response reflects a determination to address potential issues before they can be exploited maliciously.
Implications and recommendations for users
While there is no evidence that the vulnerability has been exploited maliciously, there are concerns about potential future threats. Experts recommend that all users promptly verify and update their Jetpack plugin to avoid any risk of unauthorized exposure of contact form data. The disclosure of the flaw has once again highlighted the importance of security and ongoing maintenance of WordPress sites to protect sensitive user information and site operations.
Impact and responsibility of the problem
The security issue in question dates back to 2016, when version 3.9.9 was initially released, potentially making the problem present for years before it was identified and fixed. With approximately 27 million users relying on Jetpack’s security and functionality, the importance of the issue is amplified by its scale. The Jetpack team issued a statement apologizing for the additional work and potential concerns this may have caused among site administrators, but stressed the need for rapid and proactive action to mitigate the risks. The case is a reminder of the importance of vigilance and preparedness in the face of new threats in the ever-changing digital landscape.
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Marco Verro