As we continue to expand the ability for our Plugin Security Scorecard to detect third-party libraries included with WordPress plugins, we continue to find that popular plugins are not handling their usage of those well. While preparing to notify a plugin developer that they were using a known insecure version of a library, we noticed another library in the plugin that we hadn’t yet added to the tool. That library being Vue.js. Version 2 of that reached end of life at the end of 2023. That means if there were a vulnerability or lesser security issue, then an update wouldn’t be released. (There is a scammy security provider claiming to provide further updates for it.)

While working on adding detection for the library, we found that 6 plugins with a million or more installs still contain version 2 of the library. All but one of them are not even using the latest version of version 2. That plugin is using the latest is CookieYes, which has a million installs and contains 2.7.16. [Read more]