CVE-2026-0911: wordpress wordpress-popup
Vulnerability summary
CVE-2026-0911 is a high (CVSS 7.5) vulnerability in wordpress wordpress-popup. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.6% of scored vulnerabilities. Fixed in 7.8.9.3.
Timeline
- 24-01-2026PublishedVulnerability first disclosed.
- 08-04-2026Last modifiedVulnerability information updated.
Description
The Hustle – Email Marketing, Lead Generation, Optins, Popups plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the action_import_module() function in all versions up to, and including, 7.8.9.2. This makes it possible for authenticated attackers, with a lower-privileged role (e.g., Subscriber-level access and above), to upload arbitrary files on the affected site's server which may make remote code execution possible. Successful exploitation requires an admin to grant Hustle module permissions (or module edit access) to the low-privileged user so they can access the Hustle admin page and obtain the required nonce.
CVSS metrics
3 scores · 3 sources · 1 version- NVDNIST7.5HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- wordfenceSource7.5HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.60%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
+0.03 pp
From 0.56% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Wordpress1 product
- wordpress-popup≤ 7.8.9.2 (fixed in 7.8.9.3)
Wpmudev1 product
2 vendors · 2 products