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Newsletter <= 3.8.2 — Open Redirect

db2a2ca9-a12c-412d-80f7-66f1dc3e09afPublished · Updated

Action summary

Affected: ≤3.8.2Update to 3.8.3 or newer

All remediation steps
Severity
Medium4.3
CVSS
4.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:R User interaction
Required
S:U Scope
Unchanged
C:N Confidentiality
None
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-601 Open Redirect
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

Newsletter – Send awesome emails from WordPress newsletter

  1. Affected≤ 3.8.2
  2. Patched in3.8.3

Update to 3.8.3 or newer.

You are affected if you run ≤ 3.8.2. Version 3.8.3 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.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 3.8.3, 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 James Hooker.

The Newsletter plugin is susceptible to an Open Redirect vulnerability. This issue is due to the fact user input it taken, and trusted, without validation. This user input is used when tracking link clicks, via the ‘newsletter/statistics/link.php’ script. User input is Base64 encoded, and split on the ‘;’ character, the third column of which can be manipulated in order to control where the user is redirected to.

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 (Open Redirect)

All Open Redirect
Other Open Redirect vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent HeaderCVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form SubmissionCVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' ParameterCVE-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 medium, CVSS 4.3

  2. Record last updated

Sources & licenses

Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
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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