CVE-2023-28496 MEDIUM

CVE-2023-28496: WordPress SMTP2GO Plugin <= 1.4.2 is vulnerable to Cross Site Scripting (XSS)

Vendor Smtp2Go

Product SMTP2GO – Email Made Easy

Weakness CWE-79 · XSS

Published June 22, 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 SMTP2GO – Email Made Easy plugin <= 1.4.2 versions.

Explanation of Vulnerability in Simple Terms

02Summary

SMTP2GO versions up to 1.4.2 contain a cross-site scripting (XSS) vulnerability that allows authenticated users with high privileges to inject malicious scripts. The vulnerability requires user interaction—such as clicking a crafted link—to execute. An attacker can read or modify page content and affect site availability for users who view the injected content.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in users' browsers and read or modify page content.

Potential impact on your site

04Site Impact

Admins with high privileges could be tricked into executing scripts that compromise site content or user data.

Conditions required to exploit

05Prerequisites

Attacker must have high-level admin privileges and the victim must click a malicious link or visit a crafted page.

Key dates

06Disclosure timeline

June 22, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-28496 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

Related vulnerabilities

Identifiers

CVE CVE-2023-28496

CWE CWE-79

CVSS 5.9 / MEDIUM

Affected versions