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5.4

Firefly III allows malicious files to inject JavaScript in image names

CVE-2019-13645 · published 7 years ago
Summary

Firefly III, a personal finance manager, is vulnerable to a security threat that allows an attacker to inject malicious code into image file names. This could potentially allow an attacker to take control of a user's account. To protect your data, update to version 4.7.17.3 or later.

What to do
  • Update grumpydictator firefly-iii to version 4.7.17.3.
  • Update firefly-iii firefly_iii to version 4.7.17.3 or later.
Affected software
Ecosystem VendorProductAffected versions
composer grumpydictator firefly-iii < 4.7.17.3
Fix: upgrade to 4.7.17.3
– firefly-iii firefly_iii < 4.7.17.3
cpe:2.3:a:firefly-iii:firefly_iii:*:*:*:*:*:*:*:*
Original advisory text
Firefly III before 4.7.17.3 is vulnerable to stored XSS due to lack of filtration of user-supplied data in image file names. The JavaScript code is executed during attachments/edit/$file_id$ attach...
Firefly III before 4.7.17.3 is vulnerable to stored XSS due to lack of filtration of user-supplied data in image file names. The JavaScript code is executed during attachments/edit/$file_id$ attachment editing. NOTE: It is asserted that an attacker must have the same access rights as the user in order to be able to execute the vulnerability
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.4 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published18 Jul 2019
Updated4 Nov 2026
First seen6 Mar 2026
Sources
GHSA-5hpw-vcj2-prwg · GHSA
CVE-2019-13645 · NVD
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