CVE-2023-28169 MEDIUM

CVE-2023-28169: WordPress Easy Event calendar Plugin <= 1.0 is vulnerable to Cross Site Scripting (XSS)

Vendor Corefortress

Product Easy Event calendar

Weakness CWE-79 · XSS

Published May 8, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

5.9/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in CoreFortress Easy Event calendar plugin <= 1.0 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Easy Event Calendar versions up to 1.0 contain a cross-site scripting (XSS) vulnerability that allows authenticated administrators to inject malicious scripts. The vulnerability requires user interaction—typically clicking a crafted link—and can affect other users viewing the calendar. An attacker with admin privileges can inject code that executes in visitors' browsers, potentially stealing session data or redirecting users.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers when they view the calendar.

Potential impact on your site

04Site Impact

An admin account can be compromised to inject scripts affecting other site users; visitor sessions and data may be at risk.

Conditions required to exploit

05Prerequisites

Attacker must have administrator privileges and the victim must click a link or visit a page containing the malicious payload.

Key dates

06Disclosure timeline

May 8, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-28169 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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