CVE-2026-86238Public exploitNetwork attack vector

Administrator-browser script execution via unencoded feedback

Published Sep 7, 2026 · Updated Sep 8, 2026

Stored cross-site scripting in Projectworlds Online Examination System 1.0 allows remote attackers to run script in an administrator's browser. The public feedback form stores the Name and Subject fields, and dash.php concatenates those database values into the administrator's feedback table and detail view without HTML encoding. No account is required to submit a payload, but an administrator must open the feedback list or item before the script executes and can modify content in that browser context.

CVSS severity4.3
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Projectworlds Online Examination System 1.0 allows remote attackers to run script in an administrator's browser. The public feedback form stores the Name and Subject fields, and dash.php concatenates those database values into the administrator's feedback table and detail view without HTML encoding. No account is required to submit a payload, but an administrator must open the feedback list or item before the script executes and can modify content in that browser context.

The record

CVE
CVE-2026-86238
Published
Sep 7, 2026
Updated
Sep 8, 2026
Vendor
Project Worlds
Product
Online Examination System
Classifications
CWE-79, CWE-94, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 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?

Project Worlds · Online Examination Systemversion=1.0

Published CVSS scores

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
4.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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