CVE-2025-40729Network attack vector

Browser script execution via reflected page parameter

Published Jun 16, 2025 · Updated Jun 16, 2025

Reflected XSS in Customer Support System 1.0 allows remote authenticated users to run scripts through the page parameter. /customer_support/index.php returns the untrusted page value in generated HTML without neutralizing script syntax, causing a browser to interpret it as code. A victim must activate a crafted request, and successful exploitation executes attacker-supplied script in that user's browser context.

CVSS severity4.8
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Customer Support System 1.0 allows remote authenticated users to run scripts through the page parameter. /customer_support/index.php returns the untrusted page value in generated HTML without neutralizing script syntax, causing a browser to interpret it as code. A victim must activate a crafted request, and successful exploitation executes attacker-supplied script in that user's browser context.

The record

CVE
CVE-2025-40729
Published
Jun 16, 2025
Updated
Jun 16, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 16, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.8INCIBECVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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