Threat intelligence

Interactive Content – H5P <= 1.17.6 - Reflected Cross-Site Scripting

CVE-2026-56006 · h5p

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run H5p at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Interactive Content – H5P <= 1.17.6 - Reflected Cross-Site Scripting
Affected software: h5p(Plugin)
Affected versions: ≤ 1.17.6
Authentication: Not specified in feed title — see source advisory
Vulnerability type: Cross-site scripting
CVE: CVE-2026-56006
Published: 18 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 4e7e4601-337f-4e4e-b265-63f68f8f8d73). Methodology and redistribution notes

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