CVE-2026-87915: Popup Maker (WordPress plugin) · Cross-site Scripting
Affects Popup Maker (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 7.2 High.
Data as of 2 Nov 2026, 10:58 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| danieliserPopup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder | Affected
| Fixed in– |
AI-suggested
Until an official fix is available, users should consider disabling or restricting access to the vulnerable parameter or plugin functionality. Monitor vendor channels for updates and apply patches promptly once released.
Description
The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via values[Name] Parameter in all versions up to, and including, 1.24.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The wp_kses sanitization applied on output is insufficient in this context because HTML entities within allowed attribute values survive normalization intact and are later evaluated by the jQuery(link.attr('href')) sink in wp-admin/js/common.js when a contextual help tab anchor is clicked.
References
- wordfence.com/threat-intel/vulnerabilities/id/ea8b1eee-2e3f-4d61-b815-4ea0aaa188b5?source=cve (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Admin/Subscribers/Table.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/ListTable.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Newsletters.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Newsletters.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Abstract/Database.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Newsletters.php (opens in a new tab)
- plugins.trac.wordpress.org/changeset?reponame=&new=3690634%40popup-maker%2Ftags%2F1.25.0&old=3648112%40popup-maker%2Ftags%2F1.24.0 (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3690634/popup-maker/trunk/classes/Admin/Subscribers/Table.php (opens in a new tab)