@fastly/js-compute is a JavaScript SDK and runtime for building Fastly Compute applications. The implementation of several functions were determined to include a use-after-free bug. This bug could allow for unintended data loss if the result of the preceding functions were sent anywhere else, and often results in a guest trap causing services to return a 500. This bug has been fixed in version 3.16.0 of the `@fastly/js-compute` package.

Missing Authorization vulnerability in Fastly.This issue affects Fastly: from n/a through 1.2.25.

Missing Authorization vulnerability in Fastly.This issue affects Fastly: from n/a through 1.2.25.

A vulnerability was found in Fastly Plugin up to 0.97 on WordPress. It has been rated as problematic. Affected by this issue is the function post of the file lib/api.php. The manipulation of the argument url leads to cross site scripting. The attack may be launched remotely. Upgrading to version 0.98 is able to address this issue. The patch is identified as d7fe42538f4d4af500e3af9678b6b06fba731656. It is recommended to upgrade the affected component. VDB-222326 is the identifier assigned to this vulnerability.

The JS Compute Runtime for Fastly's Compute@Edge platform provides the environment JavaScript is executed in when using the Compute@Edge JavaScript SDK. In versions prior to 0.5.3, the `Math.random` and `crypto.getRandomValues` methods fail to use sufficiently random values. The initial value to seed the PRNG (pseudorandom number generator) is baked-in to the final WebAssembly module, making the sequence of random values for that specific WebAssembly module predictable. An attacker can use the fixed seed to predict random numbers generated by these functions and bypass cryptographic security controls, for example to disclose sensitive data encrypted by functions that use these generators. The problem has been patched in version 0.5.3. No known workarounds exist.

The Fastly CDN module before 1.2.26 for Magento2, when used with a third-party authentication plugin, might allow remote authenticated users to obtain sensitive information from authenticated sessions via vectors involving caching of redirect responses.