Akaunting 3.3.0 contains a stored cross-site scripting vulnerability in custom invoice payment terms.
CVE-2026-118597
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.
Assessment
- CVSS
- 7.2 (v4.0)
- Severity
- High
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 12 November 2026
- Last updated
- 12 November 2026
- Assigner
- Fluid Attacks
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
At the source
References
- https://fluidattacks.com/advisories/rhiannon
- https://github.com/akaunting/akaunting
- 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
- https://github.com/akaunting/akaunting/blob/3.3.0/app/Abstracts/Http/SettingController.php
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