Medium (5.4) in firefly-iii firefly iii. EPSS 0.8% chance of exploitation in the next 30 days.
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
Severity
CVSS 3.0
5.4 medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)