Threat intelligence

Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 4.2.3 - Unauthenticated Stored Cross-Site Scripting

CVE-2026-28141 · nextgen-gallery

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Nextgen Gallery at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 4.2.3 - Unauthenticated Stored Cross-Site Scripting
Affected software: nextgen-gallery(Plugin)
Affected versions: ≤ 4.2.3
Authentication: Unauthenticated
Vulnerability type: Cross-site scripting
CVE: CVE-2026-28141
Published: 3 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory a41c2ee9-2c9a-4b01-8594-fe608f9d2bf2). Methodology and redistribution notes

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