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Newsletter <= 6.8.1 — Authenticated PHP Object Injection

CVE-2020-35932Published · Updated

Action summary

Affected: <6.8.2Update to 6.8.2 or newer

All remediation steps
Watch plugin
Severity
High7.5
CVSS
7.5
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:H Attack complexity
High
PR:L Privileges required
Low
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-502 PHP Object Injection
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

  1. Affected< 6.8.2
  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

  1. Update to version 6.8.2, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. 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.

Insecure Deserialization in the Newsletter plugin before 6.8.2 for WordPress allows authenticated remote attackers with minimal privileges (such as subscribers) to use the tpnc_render AJAX action to inject arbitrary PHP objects via the options[inline_edits] parameter. NOTE: exploitability depends on PHP objects that might be present with certain other plugins or themes.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Newsletter – Send awesome emails from WordPress

All 24
More vulnerabilities in Newsletter – Send awesome emails from WordPress
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via 'np1' Custom Field Parameter
≤9.4.0Update to 9.4.1
CVE-2026-96566
Medium5.3Unauthenticated 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
Medium6.1Reflected Cross-Site Scripting via 'nn' Parameter
≤9.3.8Update to 9.3.9
CVE-2026-90981
High7.2Unauthenticated Stored Cross-Site Scripting
≤9.3.3Update to 9.3.4
CVE-2026-66596
Medium4.3Cross-Site Request Forgery to Newsletter Unsubscription
≤9.1.0Update to 9.1.1
CVE-2026-1051

Same weakness (PHP Object Injection)

All PHP Object Injection
Other PHP Object Injection vulnerabilities
SeverityVulnerabilityCVEPublished
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
CVE-2026-120688
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
CVE-2026-125055
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
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 7.5

  2. 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.

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