PT-2026-65677 · Contrid · Newsletters

Wordfence Prism · CVE-2026-12938 · Published 2026-07-29 · Updated 2026-07-29

Mitre

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

The Newsletters Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'target' attribute of the [newsletters post] shortcode in versions up to and including 4.15. This is due to insufficient input sanitization and output escaping in the posts single() function which propagates the attacker-controlled 'target' attribute into the global $wpml target, and in the shortcode posts() 'post thumbnail' handler which concatenates $wpml target into a target="..." HTML attribute without esc attr(). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-12938

Affected Products

Newsletters

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-12938 · Security Note
• https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.15/helpers/shortcode.php#L851 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/293abae5-a7fb-401f-af09-324a81ce8709?source=cve · Note
• https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.15/helpers/shortcode.php#L492 · Note
• https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.15/includes/checkinit.php#L172 · Note
• https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.15/helpers/shortcode.php#L464 · Note
• https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.15/helpers/shortcode.php#L845 · Note
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3621582%40newsletters-lite&new=3621582%40newsletters-lite · Note