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Fri, 20 Mar 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A Second-Order Cross-Site Scripting (XSS) vulnerability exists in Textpattern CMS version 4.9.0 due to improper sanitization and contextual encoding of user-supplied input embedded within Atom feed XML elements. User-controlled parameters (e.g., category) are reflected into Atom fields such as <id> and <link href> without proper XML escaping. While the payload may not execute directly in modern browsers in raw XML context, it can execute when the feed is consumed by HTML-based feed readers, admin dashboards, or CMS aggregators that insert the feed content into the DOM using unsafe methods (e.g., innerHTML), resulting in JavaScript execution in a trusted context. | 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. |
Fri, 20 Mar 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A Second-Order Cross-Site Scripting (XSS) vulnerability exists in Textpattern CMS version 4.9.0 due to improper sanitization and contextual encoding of user-supplied input embedded within Atom feed XML elements. User-controlled parameters (e.g., category) are reflected into Atom fields such as <id> and <link href> without proper XML escaping. While the payload may not execute directly in modern browsers in raw XML context, it can execute when the feed is consumed by HTML-based feed readers, admin dashboards, or CMS aggregators that insert the feed content into the DOM using unsafe methods (e.g., innerHTML), resulting in JavaScript execution in a trusted context. | |
| Title | Textpattern CMS 4.9.0: Second-Order XSS via Atom Feed Injection | |
| Weaknesses | CWE-116 CWE-79 |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-03-20T17:37:38.635Z
Reserved: 2026-03-17T11:31:56.956Z
Link: CVE-2026-32986
Vulnrichment
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NVD
Status : Received
Published: 2026-03-20T16:16:17.573
Modified: 2026-03-20T18:16:16.630
Link: CVE-2026-32986
Redhat
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OpenCVE Enrichment
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