CVE-2026-118597: XSS

Description

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.

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EPSS — Exploit Prediction

0.0030

Probability of exploitation

0.23%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other 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

Frequently Asked Questions

What is 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.

How do I check if I'm vulnerable to CVE-2026-118597? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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