7.0
HIGH CVSS 4.0
CVE-2026-118855
Akaunting 3.3.0 - Stored XSS in invoice edit form through imported status
Description

Akaunting 3.3.0 contains a stored cross-site scripting vulnerability through invoice import. An authenticated user with invoice-creation permission can import HTML in an invoice status field. When another authenticated user opens that invoice's edit form, Akaunting renders the stored status in a hidden input with raw Blade output, allowing attacker-controlled markup to execute in the victim's Akaunting origin.

INFO

Published Date :

Nov. 12, 2026, 8:16 a.m.

Last Modified :

Nov. 12, 2026, 8:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-118855 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Akaunting akaunting
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH 84fe0718-d6bb-4716-a7e8-81a6d1daa869
CVSS 4.0 HIGH [email protected]
Solution
Sanitize user input for invoice status to prevent XSS attacks.
  • Sanitize all HTML input for invoice status fields.
  • Implement strict input validation for invoice data.
  • Encode output when rendering user-supplied data.
References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-118855 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-118855 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-118855 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-118855 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Nov. 12, 2026

    Action Type Old Value New Value
    Added Description Akaunting 3.3.0 contains a stored cross-site scripting vulnerability through invoice import. An authenticated user with invoice-creation permission can import HTML in an invoice status field. When another authenticated user opens that invoice's edit form, Akaunting renders the stored status in a hidden input with raw Blade output, allowing attacker-controlled markup to execute in the victim's Akaunting origin.
    Added CVSS V4.0 AV:N/AC:L/AT:P/PR:H/UI:A/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
    Added CWE CWE-79
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/118xxx/CVE-2026-118855.json">CVE-2026-118855</a>
    Added Reference https://fluidattacks.com/advisories/sabbath
    Added Reference https://github.com/akaunting/akaunting
    Added Reference https://github.com/akaunting/akaunting/blob/3.3.0/app/Http/Requests/Document/Document.php
    Added Reference https://github.com/akaunting/akaunting/blob/3.3.0/resources/views/components/form/input/hidden.blade.php
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.