Threat intelligence

Mosaic Gallery – Advanced Gallery <= 1.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting

CVE-2026-57755 · mosaic-gallery-advanced-gallery

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

Vulnerability: Mosaic Gallery – Advanced Gallery <= 1.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
Affected software: mosaic-gallery-advanced-gallery(Plugin)
Affected versions: ≤ 1.2.0
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-57755
Published: 2 July 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 144efb5e-ef90-433c-9122-dfcfebb10921). Methodology and redistribution notes

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