CVE-2019-14769: Backdropcms Backdrop

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

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.)

Affected products

• Backdropcms Backdrop: from 1.12.0, before 1.12.8 (fixed in 1.12.8); from 1.13.0, before 1.13.3 (fixed in 1.13.3)

Published 2019-08-08. Last modified 2026-06-17.