CVE-2025-13349Public exploitNetwork attack vector

Stored script execution via unencoded grade remarks

Published Nov 18, 2025 · Updated Nov 18, 2025

Stored XSS in grades.php in SourceCodester Student Grades Management System 1.0 allows remote authenticated users to execute JavaScript. The Add New Grade page stores the POST remarks value in the database and later renders it unencoded in the Recent Grades table, causing embedded script to execute in a viewer's browser. Valid teacher credentials are required to submit the payload, and execution occurs when an authenticated user views the affected grade listing.

CVSS severity3.5
Low
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in grades.php in SourceCodester Student Grades Management System 1.0 allows remote authenticated users to execute JavaScript. The Add New Grade page stores the POST remarks value in the database and later renders it unencoded in the Recent Grades table, causing embedded script to execute in a viewer's browser. Valid teacher credentials are required to submit the payload, and execution occurs when an authenticated user views the affected grade listing.

The record

CVE
CVE-2025-13349
Published
Nov 18, 2025
Updated
Nov 18, 2025
Vendor
Online Computer and Laptop Store Project
Product
Student Grades Management System
Classifications
CWE-94, CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Online Computer and Laptop Store Project · Student Grades Management Systemversion=1.0

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
2.0VulDBCVSS: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
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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