CVE-2023-37970 MEDIUM

CVE-2023-37970: WordPress MF Gig Calendar Plugin <= 1.2 is vulnerable to Cross Site Scripting (XSS)

Vendor Matthew Fries

Product MF Gig Calendar

Weakness CWE-79 · XSS

Published July 27, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

6.5/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in Matthew Fries MF Gig Calendar plugin <= 1.2 versions.

Explanation of Vulnerability in Simple Terms

02Summary

MF Gig Calendar versions up to 1.2 contain a cross-site scripting (XSS) vulnerability that allows an authenticated attacker to inject malicious scripts. The vulnerability requires user interaction—typically a victim clicking a crafted link—and can affect other users on the site. An attacker with low privileges can inject code that steals session data or performs actions on behalf of other users.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers and steal their session data or perform actions on their behalf.

Potential impact on your site

04Site Impact

Users' accounts and data are at risk if they interact with attacker-controlled links; session hijacking and unauthorized actions are possible.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account and trick a user into clicking a malicious link or visiting a crafted page.

Key dates

06Disclosure timeline

July 27, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-37970 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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