CVE-2022-45122 Cross-site scripting in Movable Type

Medium 6.1 Published Updated

Remote unauthenticated attackers can inject arbitrary scripts into Movable Type, potentially leading to code execution or account takeover.

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

What is CVE-2022-45122?

CVE-2022-45122 is a medium-severity cross-site scripting vulnerability in Six Apart Ltd. Movable Type, published on 7 Dec 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross-site scripting vulnerability in Movable Type Movable Type 7 r.5301 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.5301 and earlier (Movable Type Advanced 7 Series), Movable Type 6.8.7 and earlier (Movable Type 6 Series), Movable Type Advanced 6.8.7 and earlier (Movable Type Advanced 6 Series), Movable Type Premium 1.53 and earlier, and Movable Type Premium Advanced 1.53 and earlier allows a remote unauthenticated attacker to inject an arbitrary script.

Weakness: CWE-79

Which versions are affected by CVE-2022-45122?

It affects 1 product.

Products include Sixapart Movable Type.

How do I fix CVE-2022-45122?

No fix has been published for CVE-2022-45122 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-2022-45122 being exploited?

There is no known exploitation of CVE-2022-45122 in the wild and no public exploit code.

Sources

Also known as GHSA-42qq-mf68-hprg.

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