CVE-2021-36800: Akaunting OS Command Injection in 'Money.php'

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-08-04 · updated 2026-06-17
Weakness: CWE-94

Description

Akaunting version 2.1.12 and earlier suffers from a code injection issue in the Money.php component of the application. A POST sent to /{company_id}/sales/invoices/{invoice_id} with an items[0][price] that includes a PHP callable function is executed directly. This issue was fixed in version 2.1.13 of the product.

Affected products

Akaunting: before 2.1.13 — fixed in 2.1.13

How to fix

Upgrade to a fixed version: Akaunting 2.1.13. Check the vendor advisory for mitigations.

References

https://www.rapid7.com/blog/post/2021/07/27/multiple-open-source-web-app-vulnerabilities-fixed/
https://www.rapid7.com/blog/post/2021/07/27/multiple-open-source-web-app-vulnerabilities-fixed/

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