CVE-2026-8848 json
Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder <= 1.22.0 - Missing Authorization to Authenticated (Editor+) Arbitrary Plugin Installation
published 2026-07-09 4 mo ago modified 2026-07-09 4 mo ago also EUVD-2026-42544
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.22.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with editor-level access and above, to install and activate an arbitrary plugin from an attacker-controlled URL, leading to remote code execution. Exploitation requires that a valid Popup Maker Pro license is active on the target site and that Popup Maker Pro is not yet installed, as these conditions are necessary for the legacy v1/connect/info endpoint to issue the bearer token used to satisfy the install endpoint's only non-spoofable validation check.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Affected products
- danieliser Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/e05d4320-01d0-40c4-9a9a-457171ef7f5c?source=cve
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L520
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L330
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.22.0/classes/Controllers/RestAPI.php#L194
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.22.0/classes/Services/Connect.php#L177
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L445
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L520
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L330
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.21.5/classes/Controllers/RestAPI.php#L194
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.21.5/classes/Services/Connect.php#L177
- plugins.trac.wordpress.org /browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L445
- plugins.trac.wordpress.org /changeset?reponame=&old=3589134%40popup-maker&new=3589134%40popup-maker
Sources
- CVE List CVE-2026-8848
- NVD CVE-2026-8848
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.