CVE-2019-14769

Severity: medium (CVSS 6.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-08-08 · updated 2026-06-17
Weakness: CWE-79

Description

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; from 1.13.0 before 1.13.3 — fixed in 1.12.8, 1.13.3

How to fix

Upgrade to a fixed version: backdropcms Backdrop 1.12.8, 1.13.3. Check the vendor advisory for mitigations.

References

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