EventON <= 3.0.5 — Reflected Cross-Site Scripting
CVE-2020-29395Published · Updated Action summary
Affected: ≤3.0.5Update to 3.0.6 or newer
All remediation steps- Severity
- Medium6.1
- CVSS
- 6.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:RUser interaction- Required
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
EventON (Pro) - WordPress Virtual Event Calendar Plugin eventON
- Affected≤ 3.0.5
- Patched in3.0.6
Update to 3.0.6 or newer.
You are affected if you run ≤ 3.0.5. Version 3.0.6 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under EventON (Pro) - WordPress Virtual Event Calendar Plugin.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 3.0.6, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch EventON (Pro) - WordPress Virtual Event Calendar Plugin to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Mustafa Gundogdu (b3kc4t).
The EventON plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including 3.0.5. This is due to insufficient escaping and sanitization on the q= parameter. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Please note this only affects the premium version of this plugin.
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 EventON (Pro) - WordPress Virtual Event Calendar Plugin
All 18| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Critical9.8 | WordPress Virtual Event Calendar Plugin <= 5.0.11 - Unauthenticated Blind SQL Injection via Search Parameter ≤5.0.11No patch available | CVE-2026-9711 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤4.9.12No patch available | CVE-2026-28037 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤4.9.12No patch available | CVE-2025-63064 | |
| Medium4.3 | Missing Authorization ≤4.9.9No patch available | CVE-2025-47565 | |
| Medium6.4 | WordPress Virtual Event Calendar Plugin <= 4.9.6 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting ≤4.9.6Update to 4.9.7 | CVE-2025-3527 |
- Critical9.8WordPress Virtual Event Calendar Plugin <= 5.0.11 - Unauthenticated Blind SQL Injection via Search Parameter
≤5.0.11No patch available
- Medium6.1Reflected Cross-Site Scripting
≤4.9.12No patch available
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤4.9.12No patch available
- Medium4.3Missing Authorization
≤4.9.9No patch available
- Medium6.4WordPress Virtual Event Calendar Plugin <= 4.9.6 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting
≤4.9.6Update to 4.9.7
Same weakness (Cross-Site Scripting)
All Cross-Site Scripting| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via 'data-text-sec', 'data-title', and 'title' Attributes via Custom HTML Block | CVE-2026-18742 | |
| High7.1 | Unauthenticated PHP Object Injection to Arbitrary File Deletion via 'comment_content'/'comment_agent' Parameter during Attachment Rename Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization≤4.2.19Update to 4.2.20 | CVE-2026-124969 | |
| Critical9.8 | Missing Authorization to Unauthenticated Arbitrary User Password Reset / Account Takeover via Webhook with 'Is the user ID' Field | CVE-2026-126173 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 |
- Medium6.4Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via 'data-text-sec', 'data-title', and 'title' Attributes via Custom HTML Block
Flatsome
≤3.20.12Update to 3.20.13
- High7.1Unauthenticated PHP Object Injection to Arbitrary File Deletion via 'comment_content'/'comment_agent' Parameter during Attachment Rename
Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization
≤4.2.19Update to 4.2.20
- Critical9.8Missing Authorization to Unauthenticated Arbitrary User Password Reset / Account Takeover via Webhook with 'Is the user ID' Field
AutomatorWP Webhooks
≤1.4.4Update to 1.4.5
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
Timeline
CVE published
Severity medium, CVSS 6.1
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. 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.