TI-2022-03568 Aliases CVE-2022-3891 GHSA-ghxw-rgqv-5cp6

WP FullCalendar < 1.5 - Unauthenticated Arbitrary Post Access

MEDIUM 63Published 2023-02-13 · Updated 2025-03-21

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00694 53rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix Fixed WP FullCalendar (Unknown): 1.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	WP FullCalendar	before 1.5	1.5	Patch available	CNA

WP FullCalendar VendorUnknown Affected before 1.5 Fixed in 1.5 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:pixelite:wp_fullcalendar::::::wordpress::*	before 1.5	Vulnerable	Pixelite

cpe:2.3:a:pixelite:wp_fullcalendar:*:*:*:*:*:wordpress:*:* Versions before 1.5 Vulnerable ·Pixelite

Remediation

Fix · CNA WP FullCalendar (Unknown) Fixed in 1.5

Timeline

2026-10-02 Threatist record created from CVE-2022-3891
2026-10-03 Alias added: GHSA-ghxw-rgqv-5cp6

References

Exploit 1

https://wpscan.com/vulnerability/5a69965d-d243-4d51-b7a4-d6f4b199abf1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences