CVE-2026-15155
Essential Addons for Elementor <= 6.6.10 - Authenticated (Contributor+) Account Takeover via Email Header Injection
Description
The Essential Addons for Elementor – Popular Elementor Templates & Widgets plugin for WordPress is vulnerable to Authenticated Account Takeover via Email Header Injection in all versions up to, and including, 6.6.10 This is due to insufficient server-side validation of a Login/Register widget setting used to construct outgoing email headers — the allowed-values restriction is enforced only in the client-side editor UI and not on the server, and the applied sanitization does not strip or encode CR/LF characters, allowing CRLF sequences stored in that setting to survive into raw mail headers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject an additional Bcc header into the WordPress administrator's password-reset notification email, receive a copy of a valid administrator password-reset link, and achieve full administrator account takeover.
INFO
Published Date :
July 11, 2026, 7:16 a.m.
Last Modified :
July 11, 2026, 7:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-15155
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the Essential Addons for Elementor plugin immediately.
- Verify that the plugin is updated to a secure version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-15155.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-15155 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-15155
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-15155 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-15155 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jul. 11, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'wpdevteam', 'product': 'Essential Addons for Elementor – Popular Elementor Templates & Widgets', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '6.6.10'}], 'defaultStatus': 'unaffected'}] Added Description The Essential Addons for Elementor – Popular Elementor Templates & Widgets plugin for WordPress is vulnerable to Authenticated Account Takeover via Email Header Injection in all versions up to, and including, 6.6.10 This is due to insufficient server-side validation of a Login/Register widget setting used to construct outgoing email headers — the allowed-values restriction is enforced only in the client-side editor UI and not on the server, and the applied sanitization does not strip or encode CR/LF characters, allowing CRLF sequences stored in that setting to survive into raw mail headers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject an additional Bcc header into the WordPress administrator's password-reset notification email, receive a copy of a valid administrator password-reset link, and achieve full administrator account takeover. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-640 Added Reference https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.10/includes/Elements/Login_Register.php#L3333 Added Reference https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.10/includes/Traits/Login_Registration.php#L1271 Added Reference https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.10/includes/Traits/Login_Registration.php#L1622 Added Reference https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.5/includes/Elements/Login_Register.php#L3333 Added Reference https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.5/includes/Traits/Login_Registration.php#L1271 Added Reference https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.5/includes/Traits/Login_Registration.php#L1622 Added Reference https://plugins.trac.wordpress.org/changeset/3601504/essential-addons-for-elementor-lite/trunk/includes/Traits/Login_Registration.php Added Reference https://plugins.trac.wordpress.org/changeset?old_path=%2Fessential-addons-for-elementor-lite/tags/6.6.10&new_path=%2Fessential-addons-for-elementor-lite/tags/6.6.11 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/cbe8cf6c-b1fa-4f71-bb63-c8b181e54882?source=cve