Cross-site scripting vulnerability in Post function of VK Blocks 1.53.0.1 and earlier and VK Blocks Pro 1.53.0.1 and earlier allows a remote authenticated attacker to inject an arbitrary script.

Cross-site scripting vulnerability in Tag edit function of VK Blocks 1.53.0.1 and earlier and VK Blocks Pro 1.53.0.1 and earlier allows a remote authenticated attacker to inject an arbitrary script.

The VK All in One Expansion Unit WordPress plugin before 9.87.1.0 does not escape the $_SERVER['REQUEST_URI'] parameter before outputting it back in an attribute, which could lead to Reflected Cross-Site Scripting in old web browsers

The VK All in One Expansion Unit WordPress plugin before 9.86.0.0 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.