CVE-2026-0547Public exploitNetwork attack vector

Stored XSS via unvalidated profile photo upload

Published Jan 2, 2026 · Updated Jan 2, 2026

Stored XSS in PHPGurukul Online Course Registration 3.0 and 3.1 allows remote authenticated users to execute JavaScript via a profile photo. The student profile upload handler copies the original photo filename into studentphoto with move_uploaded_file, without checking its extension, MIME type, or content, and admin/edit-student-profile.php renders the stored SVG or HTML. Student-level access is required, and an administrator must view or edit the affected profile before the payload executes in the administrator's browser context.

CVSS severity8.8
High
EPSS probability0.35%
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 PHPGurukul Online Course Registration 3.0 and 3.1 allows remote authenticated users to execute JavaScript via a profile photo. The student profile upload handler copies the original photo filename into studentphoto with move_uploaded_file, without checking its extension, MIME type, or content, and admin/edit-student-profile.php renders the stored SVG or HTML. Student-level access is required, and an administrator must view or edit the affected profile before the payload executes in the administrator's browser context.

The record

CVE
CVE-2026-0547
Published
Jan 2, 2026
Updated
Jan 2, 2026
Vendor
jaychouchannel
Product
Online Course Registration
Classifications
CWE-434, CWE-284, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 2, 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=3.0
  2. Affected versionversion=3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

jaychouchannel · Online Course Registrationversion=3.0; version=3.1

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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-434Unrestricted Upload of File with Dangerous Type
CWE-284Improper Access Control
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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