Vulnerability · Published Apr 14, 2026 · Assigned by mitre
CVE-2026-31049
Critical 9.8
In plain English
A critical-severity security flaw in the affected software. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 48.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An issue in Hostbill v.2025-11-24 and 2025-12-01 allows a remote attacker to execute arbitrary code and escalate privileges via the CSV registration field
Affected products (as reported)
Weakness: CWE-1236 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://hostbillapp.com/changelog
- https://hostbillapp.com/release-notes/11-27-2025.html
- https://blog.hostbillapp.com/2025/12/03/hostbill-security-advisory/
- https://hostbillapp.com/responsible-disclosure
- https://hostbillapp.com/release-notes/12-01-2025.html
- https://github.com/Muhammad5235/HostBill-CVEs-2025/blob/main/Missing%20Server-Side%20Validation/Registration%20fields%20%26%20Import%20Csv