Threat intelligence

Calendar <= 1.3.17 - Authenticated (Contributor+) Stored Cross-Site Scripting

CVE-2026-14827 · calendar

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

Vulnerability: Calendar <= 1.3.17 - Authenticated (Contributor+) Stored Cross-Site Scripting
Affected software: calendar(Plugin)
Affected versions: ≤ 1.3.17
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-14827
Published: 6 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 667834e3-85c7-44d9-8858-b030c646edd1). Methodology and redistribution notes

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