{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-32986", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-03-17T11:31:56.956Z", "datePublished": "2026-03-20T15:42:04.053Z", "dateUpdated": "2026-07-14T18:40:11.978Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-14T18:40:11.978Z" }, "title": "Textpattern CMS 4.9.0: Second-Order XSS via Atom Feed Injection", "datePublic": "2026-02-27T00:00:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE" } ] }, { "descriptions": [ { "lang": "en", "cweId": "CWE-116", "description": "CWE-116 Improper Encoding or Escaping of Output", "type": "CWE" } ] } ], "affected": [ { "vendor": "Textpattern", "product": "Textpattern CMS", "versions": [ { "status": "affected", "version": "4.9.0" } ], "defaultStatus": "unaffected" } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:textpattern:textpattern:4.9.0:*:*:*:*:*:*:*" } ] } ] } ], "descriptions": [ { "lang": "en", "value": "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.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "
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.