WP FullCalendar Plugin up to 1.4 on WordPress authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in WP FullCalendar Plugin up to 1.4 on WordPress (WordPress Plugin). It has been declared as problematic. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect confidentiality. The summary by CVE is:

The WP FullCalendar WordPress plugin before 1.5 does not ensure that the post retrieved via an AJAX action is public and can be accessed by the user making the request, allowing unauthenticated attackers to get the content of arbitrary posts, including draft/private as well as password-protected ones.

The weakness was disclosed 02/13/2023. The advisory is shared at wpscan.com. This vulnerability is known as CVE-2022-3891 since 11/08/2022. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.5 eliminates this vulnerability.




CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔒



VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WP FullCalendar Plugin 1.5


11/08/2022 CVE reserved
02/13/2023 +97 days Advisory disclosed
02/13/2023 +0 days VulDB entry created
03/12/2023 +27 days VulDB last update


Advisory: wpscan.com
Status: Confirmed

CVE: CVE-2022-3891 (🔒)


Created: 02/13/2023 04:40 PM
Updated: 03/12/2023 07:36 AM
Changes: 02/13/2023 04:40 PM (39), 03/12/2023 07:36 AM (10)
Complete: 🔍


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