WebinarIgnition – Live, Automated & Evergreen Webinar System also for WooCommerce < 4.08.253 — Authenticated (Subscriber+) Arbitrary File Deletion
CVE-2026-42757Published · Updated Action summary
Affected: <4.08.253Update to 4.08.253 or newer
All remediation steps- Severity
- High8.1
- CVSS
- 8.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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:NConfidentiality- None
I:HIntegrity- High
A:HAvailability- High
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
WebinarIgnition – AI & MCP Webinar Builder on Your WordPress: Live, Automated & Evergreen, WooCommerce Upsells Inside webinar-ignition
- Affected< 4.08.253
- Patched in4.08.253
Update to 4.08.253 or newer.
You are affected if you run < 4.08.253. Version 4.08.253 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WebinarIgnition – AI & MCP Webinar Builder on Your WordPress: Live, Automated & Evergreen, WooCommerce Upsells Inside.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 4.08.253, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WebinarIgnition – AI & MCP Webinar Builder on Your WordPress: Live, Automated & Evergreen, WooCommerce Upsells Inside to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to hhhai.
The WebinarIgnition – Live, Automated & Evergreen Webinar System also for WooCommerce plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in all versions up to 4.08.253 (exclusive). This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).
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 WebinarIgnition – AI & MCP Webinar Builder on Your WordPress: Live, Automated & Evergreen, WooCommerce Upsells Inside
All 12| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Critical9.8 | Unauthenticated Privilege Escalation <4.08.253Update to 4.08.253 | CVE-2026-42758 | |
| High7.5 | Unauthenticated SQL Injection <4.09.86Update to 4.09.86 | CVE-2026-40797 | |
| Medium4.3 | Missing Authorization ≤4.06.04Update to 4.06.05 | CVE-2025-60088 | |
| Critical9.8 | Unauthenticated Login Token Generation to Authentication Bypass ≤4.03.32Update to 4.03.33 | CVE-2025-6441 | |
| Medium4.3 | Cross-Site Request Forgery ≤3.05.8Update to 3.06.0 | CVE-2024-32445 |
- Critical9.8Unauthenticated Privilege Escalation
<4.08.253Update to 4.08.253
- High7.5Unauthenticated SQL Injection
<4.09.86Update to 4.09.86
- Medium4.3Missing Authorization
≤4.06.04Update to 4.06.05
- Critical9.8Unauthenticated Login Token Generation to Authentication Bypass
≤4.03.32Update to 4.03.33
- Medium4.3Cross-Site Request Forgery
≤3.05.8Update to 3.06.0
Timeline
CVE published
Severity high, CVSS 8.1
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.