PT-2026-26626 · Textpattern · Textpattern Cms

Indoushka · Published 2026-03-20 · Updated 2026-03-20 · CVE-2026-32986

NVD

CVSS v3.1

6.1

Medium

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

Textpattern CMS version 4.9.0 contains a second-order cross-site scripting vulnerability that allows attackers to inject malicious scripts by exploiting improper sanitization of user-supplied input in Atom feed XML elements. Attackers can embed unescaped payloads in parameters such as category that are reflected into Atom fields like and , which execute as JavaScript when feed readers or CMS aggregators consume the feed and insert content into the DOM using unsafe methods.

Exploit

Fix

XSS

Improper Encoding or Escaping of Output

Weakness Enumeration

CWE-79

CWE-116

Related Identifiers

CVE-2026-32986

Affected Products

Textpattern Cms

References · 4

• 🔥 https://packetstorm.news/files/id/216241 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-32986 · Security Note
• https://twitter.com/cyberbivash/status/2035035711460573646 · Twitter Post
• https://textpattern.com · Note