RCE in Itsourcecode Payroll Management System
CVE-2026-4877
A security flaw has been discovered in itsourcecode Payroll Management System up to 1.0. This affects an unknown function of the file /index.php. Performing a manipulation of the argument page results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- Itsourcecode Payroll Management System — versions 1.0
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/ltranquility/submit/issues/4 (issue-tracking, exploit)
- itsourcecode.com/ (product)
Frequently asked questions
- What is CVE-2026-4877?
- CVE-2026-4877 is a medium-severity vulnerability in Itsourcecode Payroll Management System, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-03-26.
- How severe is CVE-2026-4877?
- Medium severity. CVSS v3 base score is 4.3 out of 10.