CVE-2026-87915Network attack vectorHinoki check available

Unauthenticated stored XSS via subscriber name

Published Sep 18, 2026 · Updated Sep 18, 2026

Stored XSS in Code Atlantic Popup Maker 1.24.0 and earlier allows remote attackers to inject scripts through values[Name]. HTML entities in an allowed attribute survive wp_kses normalization and reach the jQuery(link.attr('href')) sink in WordPress admin. No account is required to store a payload; it executes in an administrator's browser when the contextual-help anchor is clicked.

CVSS severity7.2
High
EPSS probability0.49%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored XSS in Code Atlantic Popup Maker 1.24.0 and earlier allows remote attackers to inject scripts through values[Name]. HTML entities in an allowed attribute survive wp_kses normalization and reach the jQuery(link.attr('href')) sink in WordPress admin. No account is required to store a payload; it executes in an administrator's browser when the contextual-help anchor is clicked.

The record

CVE
CVE-2026-87915
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
Code Atlantic
Product
Popup Maker
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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 <=1.24.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Code Atlantic · Popup Makerversion=0 <=1.24.0

Published CVSS scores

7.2Wordfence CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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