CVE-2026-48944

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "K2 extension for Joomla", "vendor": "getk2.org", "versions": [{"status": "affected", "version": "1.0-2.26"}]}], "source": "security@joomla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:joomlaworks:k2:*:*:*:*:*:joomla\\!:*:*", "matchCriteriaId": "75F0068E-23F6-4BDC-97E2-AAD0D06F5D72", "versionEndIncluding": "2.26", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The K2 frontend article-save handler accepts an `attachment[N][existing]` POST field that is concatenated with `JPATH_SITE/` and passed to `JFile::copy()`. `JPath::clean` does NOT strip `..`, and there is no allow-list of source paths. An Author can therefore copy `configuration.php` (or any other file readable by the web user \u2014 including `../../../etc/passwd`) into `/media/k2/attachments/`, then retrieve the contents via the K2 attachment-download endpoint."}, {"lang": "es", "value": "El gestor de guardado de art\u00edculos del frontend de K2 acepta un campo POST \u201cattachment[N][existing]\u201d que se concatena con \u201cJPATH_SITE/\u201d y se pasa a \u201cJFile::copy()\u201d. \u201cJPath::clean\u201d NO elimina \u201c..\u201d, y no hay una lista de permitidos de rutas de origen. Un autor puede, por lo tanto, copiar \u201cconfiguration.php\u201d (o cualquier otro archivo legible por el usuario web - incluyendo \u201c.. / .. / .. / etc/p4ssd\u201d) en \u201c/media/k2/attachments/\u201d, y luego recuperar el contenido a trav\u00e9s del endpoint de descarga de adjuntos de K2."}], "id": "CVE-2026-48944", "lastModified": "2026-10-25T22:10:00.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48944", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-25T18:42:56.836321Z", "version": "2.0.3"}}]}, "published": "2026-06-25T16:16:36.950", "references": [{"source": "security@joomla.org", "tags": ["Product"], "url": "https://www.getk2.org/"}], "sourceIdentifier": "security@joomla.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security@joomla.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1.0,2.26]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "K2 extension for Joomla", "source": "cna", "vendor": "getk2.com"}, "product": "k2_extension_for_joomla", "vendor": "getk2"}], "created": "2026-06-25T17:00:11.702845+00:00", "updated": "2026-06-26T09:37:04.275214+00:00", "vendors": ["getk2", "getk2$PRODUCT$k2_extension_for_joomla"]}