CVE-2026-28141 HIGH

CVE-2026-28141: WordPress NextGEN Gallery plugin <= 4.2.3 - Cross Site Scripting (XSS) vulnerability

Vendor Syed Balkhi

Product NextGEN Gallery

Weakness CWE-79 · XSS

Published August 6, 2026

Last update August 6, 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

Unauthenticated Cross Site Scripting (XSS) in NextGEN Gallery <= 4.2.3 versions.

Explanation of Vulnerability in Simple Terms

02Summary

NextGEN Gallery versions up to 4.2.3 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the site. An attacker can craft a malicious link that, when clicked by a site visitor, executes arbitrary JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability affects all users who click a specially crafted link.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in visitors' browsers to steal sessions, credentials, or deface content.

Potential impact on your site

04Site Impact

Visitors clicking attacker-controlled links may have sessions hijacked or credentials stolen; site reputation at risk.

Conditions required to exploit

05Prerequisites

Attacker must trick a site visitor into clicking a malicious link; no authentication required.

Key dates

06Disclosure timeline

August 6, 2026 CVE published

August 6, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-28141 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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