CVE-2023-27421 HIGH

CVE-2023-27421: WordPress Everest News Theme <= 1.1.0 is vulnerable to Cross Site Scripting (XSS)

Vendor Everest Themes

Product Everest News

Weakness CWE-79 · XSS

Published August 8, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Everest themes Everest News theme <= 1.1.0 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Everest News versions up to 1.1.0 contain a stored cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the site. An attacker can craft a malicious link or page that, when visited by a site administrator or user, executes arbitrary JavaScript in their browser. This can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that executes in users' browsers when they visit affected pages.

Potential impact on your site

04Site Impact

Attackers can steal admin sessions, modify site content, or harvest user credentials through injected scripts.

Conditions required to exploit

05Prerequisites

Attacker needs a victim to click a malicious link or visit a compromised page (user interaction required).

Key dates

06Disclosure timeline

August 8, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-27421 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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