Improper Encoding or Escaping of Output Affecting grumpydictator/firefly-iii package, versions <6.6.3
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- published27 Jun 2026
- disclosed12 Jun 2026
- creditalanturing881
Introduced: 12 Jun 2026
CVE NOT AVAILABLE CWE-116 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade grumpydictator/firefly-iii to version 6.6.3 or higher.
Overview
grumpydictator/firefly-iii is a personal finances manager.
Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output via the rendering process in the ale.twig template when user-controlled input is displayed without proper escaping. An attacker can execute arbitrary JavaScript in the context of another user's browser by injecting malicious HTML payloads into the piggy bank name field.