Threat intelligence

Slideshow Gallery LITE <= 1.8.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'alwaysauto' Shortcode Attribute

CVE-2026-2021 · slideshow-gallery

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

Vulnerability: Slideshow Gallery LITE <= 1.8.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'alwaysauto' Shortcode Attribute
Affected software: slideshow-gallery(Plugin)
Affected versions: ≤ 1.8.5
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-2021
Published: 17 June 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 55d842fc-a750-4b59-a1d6-b3bd427dfe79). Methodology and redistribution notes

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