CVE-2023-27925 Cross-site scripting in VK Blocks and VK Blocks Pro

Medium 5.4 Published Updated

An authenticated attacker can inject arbitrary scripts via the Post function in VK Blocks, potentially compromising user sessions.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-27925?

CVE-2023-27925 is a medium-severity cross-site scripting vulnerability in Vektor,Inc. VK Blocks and VK Blocks Pro, published on 23 May 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-79

Which versions are affected by CVE-2023-27925?

It affects 1 product.

Products include Vektor-Inc Vk Blocks.

How do I fix CVE-2023-27925?

No fix has been published for CVE-2023-27925 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-27925 being exploited?

There is no known exploitation of CVE-2023-27925 in the wild and no public exploit code.

Sources

Also known as GHSA-6q2c-9f56-3h2c.

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