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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,5.4.3]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.0.0,6.0.3]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Joomla! CMS", "source": "cna", "vendor": "Joomla! Project"}, "product": "joomla!", "vendor": "joomla"}], "analysis": {"en": {"generated_at": "2026-04-09T21:26:59.914397+00:00", "value": {"mitigation_remediation": ["Apply the latest Joomla! CMS security patch released by the Joomla! Project", "If the autoupdate feature is not required, disable or remove the com_joomlaupdate component", "Limit file permissions for Joomla! installation directories to reduce the scope of deletion"], "summary": {"action": "Immediate Patch", "impact": "Remote file deletion leading to loss of integrity and availability"}, "threat_synthesis": {"affected_systems": "The vulnerability affects any installation of Joomla! CMS that uses the com_joomlaupdate component. No specific version numbers are listed in the advisory, but the issue applies to Joomla! CMS deployments that have the autoupdate feature enabled.", "description_and_impact": "A lack of input validation in Joomla! CMS\u2019s autoupdate server mechanism allows an attacker to delete arbitrary files on the server. The vulnerability can remove critical files, resulting in a loss of site integrity and potentially making the site unavailable. It is a file\u2011path traversal flaw classified as CWE\u201173. The impact could include site downtime, loss of data, and facilitation of further compromise if essential configuration files are removed.", "risk_and_exploitability": "The CVSS base score of 8.6 indicates high severity. EPSS shows a low probability of exploitation (<1%), and the vulnerability is not listed in CISA\u2019s KEV catalog. The likely attack vector is a remote web-based request to the autoupdate component, which an attacker can craft to specify arbitrary file paths. Although the probability of exploitation is currently low, the high impact necessitates timely action."}}}}, "created": "2026-04-02T07:49:26.712954+00:00", "updated": "2026-04-10T09:45:47.540448+00:00", "vendors": ["joomla", "joomla$PRODUCT$joomla!"]}