Threat intelligence

Cozy Blocks <= 2.2.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute

CVE-2026-15393 · cozy-addons

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

Vulnerability: Cozy Blocks <= 2.2.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute
Affected software: cozy-addons(Plugin)
Affected versions: ≤ 2.2.11
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-15393
Published: 28 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 e93de7ae-c3a8-4536-9c07-e64d7746e05f). Methodology and redistribution notes

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