CVE-2026-15715Public exploitNetwork attack vector

Browser script execution via unencoded day parameter

Published Jul 14, 2026 · Updated Jul 14, 2026

Cross-site scripting in SourceCodester Class and Exam Timetabling System 1.0 allows remote attackers to execute scripts via the day parameter. The exam.php handler returns the day value directly in page output without encoding or filtering, so injected markup is interpreted as script. No login is required, but a victim must load the crafted output; script execution remains in the victim browser context and exposes session data or performs actions as that user.

CVSS severity4.3
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in SourceCodester Class and Exam Timetabling System 1.0 allows remote attackers to execute scripts via the day parameter. The exam.php handler returns the day value directly in page output without encoding or filtering, so injected markup is interpreted as script. No login is required, but a victim must load the crafted output; script execution remains in the victim browser context and exposes session data or performs actions as that user.

The record

CVE
CVE-2026-15715
Published
Jul 14, 2026
Updated
Jul 14, 2026
Vendor
Online Computer and Laptop Store Project
Product
Class and Exam Timetabling System
Classifications
CWE-94, CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 2026Record 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 privilegesunauthenticated

What is affected?

Online Computer and Laptop Store Project · Class and Exam Timetabling Systemversion=1.0

Published CVSS scores

4.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
2.1VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
5.0VulDB CNAAV:N/AC:L/Au:N/C:N/I:P/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.

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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
Privilegesunauthenticated
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')
T1203Exploitation for Client Execution

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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