CVE-2026-118597

EUVD-2026-124290
Akaunting 3.3.0 contains a stored cross-site scripting vulnerability in custom invoice payment terms. An authenticated Manager can save a crafted custom payment-term value. When an authorized user opens Invoice Settings for the same company, Akaunting inserts the stored value into a client-side event-handler expression, causing attacker-controlled JavaScript to execute in the victim's authenticated origin.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
Fluid AttacksCNA
7.2 HIGH
NETWORK
LOW
HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Base Score
CVSS 3.x
EPSS Score
Percentile: 22.73%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
akauntingakaunting
3.3.0
CNA
Common Weakness Enumeration
References
https://fluidattacks.com/advisories/rhiannon
https://github.com/akaunting/akaunting
https://github.com/akaunting/akaunting/blob/3.3.0/app/Abstracts/Http/SettingController.php
https://github.com/akaunting/akaunting/blob/3.3.0/app/View/Components/Form/Group/PaymentTerm.php
https://github.com/akaunting/akaunting/blob/3.3.0/resources/views/components/form/group/payment_term.blade.php