CVE-2021-4331: posimyth the_plus_addons_for_elementor Missing Authorization
Vulnerability summary
CVE-2021-4331 is a high (CVSS 8.8) Missing Authorization vulnerability in posimyth the_plus_addons_for_elementor. EPSS estimates a 0.89% chance of exploitation in the next 30 days, higher than 58.7% of scored vulnerabilities.
Timeline
- 07-03-2023PublishedVulnerability first disclosed.
- 08-04-2026Last modifiedVulnerability information updated.
Description
The Plus Addons for Elementor plugin for WordPress is vulnerable to privilege escalation in versions up to, and including 4.1.9 (pro) and 2.0.6 (free). The plugin adds a registration form to the Elementor page builders functionality. As part of the registration form, users can choose which role to set as the default for users upon registration. This field is not hidden for lower-level users so any user with access to the Elementor page builder, such as contributors, can set the default role to administrator. Since contributors can not publish posts, only author+ users can elevate privileges without interaction via a site administrator (to approve a post).
CVSS metrics
3 scores · 3 sources · 1 version- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- wordfenceSource8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.89%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
0.00 pp
From 0.89% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Posimyththemes2 products
Wordpress2 products
- the-plus-addons-for-elementor-page-builder≤ 2.0.6 (fixed in 2.0.7)
- theplus_elementor_addon≤ 4.1.9 (fixed in 4.1.10)
Posimyth1 product
- the_plus_addons_for_elementor≤ 2.0.6 | ≤ 4.1.9
3 vendors · 5 products
References
3 links- plugins.trac.wordpress.org/changesetThird Party Advisory
- www.wordfence.com/threat-intel/vulnerabilities/id/96388c82-2392-42b3-b0a0-c3d92910fb5cX TransferredThird Party AdvisoryVendor Advisory