Insufficient Output Filtering in Block Labels in Backdrop CMS

Insufficient Output Filtering in Block Labels in Backdrop CMS

CVE-2019-14769 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

Backdrop CMS 1.12.x before 1.12.8 and 1.13.x before 1.13.3 doesn't sufficiently filter output when displaying certain block labels created by administrators. An attacker could potentially craft a specialized label, then have an administrator execute scripting when administering a layout. (This issue is mitigated by the attacker needing permission to create custom blocks on the site, which is typically an administrative permission.)

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