CVE-2026-5106Public exploitNetwork attack vector

Authenticated reflected XSS via unencoded sname output

Published Mar 30, 2026 · Updated Mar 30, 2026

Cross-site scripting in Exam Form Submission 1.0 allows remote authenticated users to execute script in an administrator's browser via sname. The /admin/update_fst.php handler writes the sname parameter directly into its response without context-appropriate output encoding or filtering. Exploitation requires high-privilege access and a victim to load the response; injected script runs in that browser's application context.

CVSS severity4.8
Medium
EPSS probability0.19%
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 Exam Form Submission 1.0 allows remote authenticated users to execute script in an administrator's browser via sname. The /admin/update_fst.php handler writes the sname parameter directly into its response without context-appropriate output encoding or filtering. Exploitation requires high-privilege access and a victim to load the response; injected script runs in that browser's application context.

The record

CVE
CVE-2026-5106
Published
Mar 30, 2026
Updated
Mar 30, 2026
Vendor
Tutorials Website
Product
Exam Form Submission
Classifications
CWE-79, CWE-94, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 30, 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 privilegesadmin

What is affected?

Tutorials Website · Exam Form Submissionversion=1.0

Published CVSS scores

1.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N
2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/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
Privilegesadmin
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')
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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