Threat intelligence

Speed Optimizer <= 7.8.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Image Tag Attributes

CVE-2026-15421 · sg-cachepress

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

Vulnerability: Speed Optimizer <= 7.8.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Image Tag Attributes
Affected software: sg-cachepress(Plugin)
Affected versions: ≤ 7.8.0
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-15421
Published: 18 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 2626ad96-4346-4564-b6bd-0c226bd8dfd4). Methodology and redistribution notes

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