CVE-2026-87761Network attack vector

Subscriber-level stored XSS via unescaped configuration output

Published Oct 11, 2026 · Updated Oct 11, 2026

Stored XSS in Adwised Web Push Notification 2.5.7 and earlier allows remote authenticated users to inject scripts via settings. Configuration writes lack capability and nonce checks, and stored values are printed unescaped in inline scripts on every front-end page. Subscriber access suffices; visiting pages executes injected scripts in visitors' browsers, including administrators' browsers.

CVSS severityUnavailable
Unscored
EPSS probability0.28%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Adwised Web Push Notification 2.5.7 and earlier allows remote authenticated users to inject scripts via settings. Configuration writes lack capability and nonce checks, and stored values are printed unescaped in inline scripts on every front-end page. Subscriber access suffices; visiting pages executes injected scripts in visitors' browsers, including administrators' browsers.

The record

CVE
CVE-2026-87761
Published
Oct 11, 2026
Updated
Oct 11, 2026
Vendor
Adwised
Product
Adwised Web Push Notification
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 11, 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 <=2.5.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Adwised · Adwised Web Push Notificationversion=0 <=2.5.7

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Cross-Site Scripting (XSS)
T1203Exploitation for Client Execution

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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