Jetpack has also formally disclosed the vulnerability in an advisory whilst acknowledging the researchers findings. While they haven’t revealed much details about the flaw yet, they have hinted about the far-reaching impact of the vulnerability.
We found a vulnerability in the way Jetpack processed embed code that has existed since Jetpack 5.1, released in July 2017. Thank you to Adham Sadaqah for disclosing this issue to us in a responsible manner.While the developers deem the vulnerability critical, they also ensure no active exploitation of the flaw.
We have no evidence that this vulnerability has been exploited in the wild. However, now that the update has been released, it is only a matter of time before someone tries to take advantage of this vulnerability
We worked with the WordPress.org Security Team to release patched versions of every version of Jetpack since 5.1.Consequently, the latest patched version of Jetpack plugin is the Jetpack 7.9.1, in which, they have also fixed some other minor issues.
Jetpack urge users to ensure updating their websites to the latest Jetpack 7.9.1.
If you’re not running the latest and greatest—7.9.1—your site is missing other security enhancements.So far most websites have already received the updates and are potentially safe. According to the Jetpack stats as per WordPress Plugins site, around 38% of the websites are already running the patched version.
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