Essential Addons for Elementor <= 6.6.10 — Authenticated (Contributor+) Account Takeover via Email Header Injection
CVE-2026-15155Published · Updated Action summary
Affected: ≤6.6.10Update to 6.6.11 or newer
All remediation steps- Severity
- High8.8
- CVSS
- 8.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Essential Addons for Elementor – Popular Elementor Templates & Widgets essential-addons-for-elementor-lite
- Affected≤ 6.6.10
- Patched in6.6.11
Update to 6.6.11 or newer.
You are affected if you run ≤ 6.6.10. Version 6.6.11 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Essential Addons for Elementor – Popular Elementor Templates & Widgets.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 6.6.11, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Essential Addons for Elementor – Popular Elementor Templates & Widgets to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Jonah Burgess (CryptoCat).
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Essential Addons for Elementor – Popular Elementor Templates & Widgets
All 76| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.4 | Unauthenticated Privilege Escalation to 'page_id' Parameter via Elementor Revision ≤6.8.7Update to 6.8.8 | CVE-2026-118205 | |
| Medium6.3 | 6.8.7 - Authenticated (Author+) Privilege Escalation 6.6.0 – 6.8.7Update to 6.8.8 | CVE-2026-110808 | |
| Medium5.3 | Unauthenticated Information Exposure <6.8.7Update to 6.8.7 | CVE-2026-110509 | |
| High7.3 | 6.8.6 - Unauthenticated Registration Approval Bypass 6.7.3 – 6.8.6Update to 6.8.7 | CVE-2026-110508 | |
| Low2.7 | Missing Authorization <6.8.7Update to 6.8.7 | CVE-2026-110537 |
- High7.4Unauthenticated Privilege Escalation to 'page_id' Parameter via Elementor Revision
≤6.8.7Update to 6.8.8
- Medium6.36.8.7 - Authenticated (Author+) Privilege Escalation
6.6.0 – 6.8.7Update to 6.8.8
- Medium5.3Unauthenticated Information Exposure
<6.8.7Update to 6.8.7
- High7.36.8.6 - Unauthenticated Registration Approval Bypass
6.7.3 – 6.8.6Update to 6.8.7
- Low2.7Missing Authorization
<6.8.7Update to 6.8.7
Timeline
CVE published
Severity high, CVSS 8.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.