Newsletter <= 6.8.1 — Reflected Cross-Site Scripting
CVE-2020-35933Published · Updated Action summary
Affected: <6.8.2Update to 6.8.2 or newer
All remediation steps- Severity
- Medium6.5
- CVSS
- 6.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:LWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:RUser interaction- Required
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:LAvailability- Low
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Newsletter – Send awesome emails from WordPress newsletter
- Affected< 6.8.2
- Patched in6.8.2
Update to 6.8.2 or newer.
You are affected if you run < 6.8.2. Version 6.8.2 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Newsletter – Send awesome emails from WordPress.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 6.8.2, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Newsletter – Send awesome emails from WordPress to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Ram.
A Reflected Authenticated Cross-Site Scripting (XSS) vulnerability in the Newsletter plugin before 6.8.2 for WordPress allows remote attackers to trick a victim into submitting a tnpc_render AJAX request containing either JavaScript in an options parameter, or a base64-encoded JSON string containing JavaScript in the encoded_options parameter.
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 Newsletter – Send awesome emails from WordPress
All 24| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via 'np1' Custom Field Parameter ≤9.4.0Update to 9.4.1 | CVE-2026-96566 | |
| Medium5.3 | Unauthenticated Insufficiently Protected Credentials via '/tnp/l/' Click-Tracking REST Endpoint (Raw Subscriber Token Cookie Disclosure) ≤9.3.9Update to 9.4.0 | CVE-2026-92537 | |
| Medium6.1 | Reflected Cross-Site Scripting via 'nn' Parameter ≤9.3.8Update to 9.3.9 | CVE-2026-90981 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤9.3.3Update to 9.3.4 | CVE-2026-66596 | |
| Medium4.3 | Cross-Site Request Forgery to Newsletter Unsubscription ≤9.1.0Update to 9.1.1 | CVE-2026-1051 |
- High7.2Unauthenticated Stored Cross-Site Scripting via 'np1' Custom Field Parameter
≤9.4.0Update to 9.4.1
- Medium5.3Unauthenticated Insufficiently Protected Credentials via '/tnp/l/' Click-Tracking REST Endpoint (Raw Subscriber Token Cookie Disclosure)
≤9.3.9Update to 9.4.0
- Medium6.1Reflected Cross-Site Scripting via 'nn' Parameter
≤9.3.8Update to 9.3.9
- High7.2Unauthenticated Stored Cross-Site Scripting
≤9.3.3Update to 9.3.4
- Medium4.3Cross-Site Request Forgery to Newsletter Unsubscription
≤9.1.0Update to 9.1.1
Same weakness (Cross-Site Scripting)
All Cross-Site Scripting| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- 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
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 6.5
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.