Stored Cross-Site Scripting in Newsletters Lite Plugin for WordPress
CVE-2026-12938

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Newsletters
Vendor
CVE Published:
29 July 2026

What is CVE-2026-12938?

The Newsletters Lite plugin for WordPress suffers from a Stored Cross-Site Scripting vulnerability detected in the 'target' attribute of the [newsletters_post] shortcode. This flaw arises due to inadequate input sanitization and output escaping in key functions, allowing authenticated attackers with Contributor-level permissions and higher to inject arbitrary web scripts. These scripts will execute whenever a user accesses manipulated posts, posing significant security risks to the integrity of the site and its users.

Affected Version(s)

Newsletters 0 <= 4.15

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/newsletters-li...
https://plugins.trac.wordpress.org/browser/newsletters-li...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wordfence PRISM
.