CVE-2026-31050

MEDIUM

Published Apr 24, 2026 Modified Apr 24, 2026 CWE-79

Description

Cross Site Scripting vulnerability in Hostbill v.2025-11-24 and 2025-12-01 allows a remote attacker to execute arbitrary code

CVSS v3.1 Score

4.9

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0012

Probability of exploitation

0.31%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

https://blog.hostbillapp.com/2025/12/03/hostbill-security-advisory/ https://github.com/Muhammad5235/HostBill-CVEs-2025/blob/main/Stored%20Cross-Site%20Scripting%20%28XSS%29%20Vulnerability/admin%20and%20client%20interfaces https://hostbillapp.com/changelog https://hostbillapp.com/release-notes/11-27-2025.html https://hostbillapp.com/release-notes/12-01-2025.html https://hostbillapp.com/responsible-disclosure https://github.com/Muhammad5235/HostBill-CVEs-2025/blob/main/Stored%20Cross-Site%20Scripting%20%28XSS%29%20Vulnerability/admin%20and%20client%20interfaces

Frequently Asked Questions

What is CVE-2026-31050? +

Cross Site Scripting vulnerability in Hostbill v.2025-11-24 and 2025-12-01 allows a remote attacker to execute arbitrary code It has a CVSS v3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2026-31050? +

CVE-2026-31050 has a CVSS v3.1 score of 4.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0012, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-31050? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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