CVE-2025-23556Network attack vector

Unauthenticated browser script execution via undisclosed reflection

Published Mar 3, 2025 · Updated May 12, 2026

Reflected XSS in Netbit Solutions Push Envoy Notifications 1.0.0 and earlier allows remote attackers to execute script via a crafted request. Public CNA and vendor materials do not identify the affected parameter or code locus, stating only that untrusted input is reflected into generated web content. Exploitation is unauthenticated but requires a privileged user to open a crafted link, page, or form; the script then runs in that user's browser context.

CVSS severity7.1
High
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 Netbit Solutions Push Envoy Notifications 1.0.0 and earlier allows remote attackers to execute script via a crafted request. Public CNA and vendor materials do not identify the affected parameter or code locus, stating only that untrusted input is reflected into generated web content. Exploitation is unauthenticated but requires a privileged user to open a crafted link, page, or form; the script then runs in that user's browser context.

The record

CVE
CVE-2025-23556
Published
Mar 3, 2025
Updated
May 12, 2026
Vendor
Netbit Solutions
Product
Push Envoy Notifications
Classifications
CWE-79, CAPEC-591, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 3, 2025CVE publishedPublication date reported by the CVE source.
  2. May 12, 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=0 <=1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Netbit Solutions · Push Envoy Notificationsversion=0 <=1.0.0

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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