CVE-2026-9485

MEDIUM 5.1 PoC AVAILABLE

Published 2026-05-25 · Last modified 2026-05-26

A vulnerability was identified in SourceCodester Student Grades Management System 1.0. Affected by this issue is some unknown functionality of the file students.php. The manipulation of the argument Remarks leads to cross site scripting. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

EXPLOIT AVAILABLE

Public exploit or PoC code exists. Modeled probability is still low, but the barrier to attack is reduced — watch closely.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 16th percentile

○ In CISA KEV ● Public exploit / PoC

Impact if exploited

5.1CVSS 4.0 · MEDIUM

ConfidentialityNone
IntegrityLow
AvailabilityNone

What an attacker needs

✓Access: Reachable over the network — no local access needed
⚠Privileges: Requires a low-privilege account
⚠User interaction: Succeeds with passive user activity
✓Complexity: No special conditions — reliably repeatable
✓Requirements: No special attack requirements

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

PoC https://github.com/Jack-MRJ/Student-Grades-Management-System-Vulnerability-Report

Listed for defensive triage and patch prioritization.

Affected

Vendors Sourcecodester

Products Student Grades Management System

Weakness (CWE)

CWE-79: Cross-site scripting (XSS)
CWE-94: Code injection

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

References

Sources: NVD · CVE.org · EPSS