Threat intelligence

LiteSpeed Cache <= 7.8.1 - Unauthenticated Stored Cross-Site Scripting via Comment Content

CVE-2026-18978 · litespeed-cache

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

Vulnerability: LiteSpeed Cache <= 7.8.1 - Unauthenticated Stored Cross-Site Scripting via Comment Content
Affected software: litespeed-cache(Plugin)
Affected versions: ≤ 7.8.1
Authentication: Unauthenticated
Vulnerability type: Cross-site scripting
CVE: CVE-2026-18978
Published: 27 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 0b045f3d-8412-4e35-b369-2b485639274d). Methodology and redistribution notes

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