CVE-2022-2846 Calendar Event Multi View < 1.4.07 - Unauthenticated Arbitrary Event Creation to Stored XSS

Medium 4.3 Published Updated

Unauthenticated attackers can create arbitrary events with stored XSS payloads due to missing authorization and sanitization in the Calendar Event Multi View plugin.

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-2022-2846?

CVE-2022-2846 is a medium-severity cross-site scripting vulnerability in Unknown Calendar Event Multi View, published on 16 Aug 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

The Calendar Event Multi View WordPress plugin before 1.4.07 does not have any authorisation and CSRF checks in place when creating an event, and is also lacking sanitisation as well as escaping in some of the event fields. This could allow unauthenticated attackers to create arbitrary events and put Cross-Site Scripting payloads in it.

Weakness: CWE-352, CWE-862, CWE-79

Which versions are affected by CVE-2022-2846?

It affects 1 product.

Products include Dwbooster Calendar Event Multi View.

How do I fix CVE-2022-2846?

No fix has been published for CVE-2022-2846 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-2022-2846 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-2846 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-cjc3-36xg-wx7g.

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