CVE-2026-125749 TaxHacker through 0.8.5 IDOR via Settings Server Actions userId

Low 2.3 Published 10 Nov 2026 Updated 10 Nov 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-125749?

CVE-2026-125749 is a low-severity vulnerability in vas3k TaxHacker, published on 10 Nov 2026.

Official description

TaxHacker through 0.8.5 contains an insecure direct object reference vulnerability in app/(app)/settings/actions.ts that allows authenticated users to modify other users' data by supplying an arbitrary userId. Attackers can invoke Server Actions like deleteCategoryAction or editFieldAction with a victim's UUID to delete categories, clear transaction assignments, or alter LLM prompts.

Weakness: CWE-639

Which versions are affected by CVE-2026-125749?

How do I fix CVE-2026-125749?

No fix has been published for CVE-2026-125749 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-125749 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-125749 exists.

Sources

Also known as GHSA-pwqc-qhg6-97mf.