A vulnerability was found in VR Calendar Plugin up to 2.3.3 on WordPress (Calendar Software). It has been declared as problematic. Affected by this vulnerability is an unknown part of the component Plugin Setting Handler. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. The CWE definition for the vulnerability is CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. As an impact it is known to affect integrity. The summary by CVE is:

The VR Calendar plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.3.3. This is due to missing or incorrect nonce validation on several functions. This makes it possible for unauthenticated attackers to delete, and modify calendars as well as the plugin settings, via forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The weakness was shared 11/04/2022. The advisory is shared at wordfence.com. This vulnerability is known as CVE-2022-3852 since 11/03/2022. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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• Calendar Software

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• VR Calendar Plugin

Version

• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3

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