What is CVE-2023-27241?

CVE-2023-27241 is a medium-severity vulnerability in Water Billing System Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-03-27.

How severe is CVE-2023-27241?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Water Billing System Project

CVE-2023-27241

SourceCodester Water Billing System v1.0 was discovered to contain a cross-site scripting (XSS) vulnerability via the lastname text box under the Add Client module.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-03-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (35.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Water Billing System Project — versions 1.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/kaikai-11/WaterBilling-System (Exploit, Vendor Advisory)
github.com/kaikai-11/WaterBilling-System/blob/main/README.md (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2023-27241?: CVE-2023-27241 is a medium-severity vulnerability in Water Billing System Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-03-27.
How severe is CVE-2023-27241?: Medium severity. CVSS v3 base score is 6.1 out of 10.