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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0-RC1,4.17.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.0.0-RC1,5.9.14)"}}], "enrichment": {"confidence": 83.0, "confidence_source": "matching", "scores": [{"score": 83.0, "source": "matching"}]}, "original": {"product": "cms", "source": "cna", "vendor": "craftcms"}, "product": "craftcms", "vendor": "craftcms"}], "analysis": {"en": {"generated_at": "2026-03-26T15:48:33.968389+00:00", "value": {"mitigation_remediation": ["Apply the official patch by upgrading Craft CMS to version 4.17.8 or later, or 5.9.14 or later.", "If an immediate upgrade is not feasible, enforce access control on the /assets/generate-transform endpoint by restricting it to authenticated users via application configuration or firewall rules.", "Verify that the patched versions are in use by checking the CMS version number or reviewing the installed package list."], "summary": {"action": "Patch Immediately", "impact": "Unauthorized disclosure of private assets via transform URLs"}, "threat_synthesis": {"affected_systems": "All installations of Craft CMS between the specified ranges are affected. The vulnerability applies to releases 4.0.0\u2011RC1 through 4.17.7 and 5.0.0\u2011RC1 through 5.9.13. The issue has been fixed in version 4.17.8 and in 5.9.14. Vendors and product maintainers listed are CraftCMS (Craft CMS).", "description_and_impact": "Craft CMS versions from 4.0.0\u2011RC1 up to but excluding 4.17.8, and from 5.0.0\u2011RC1 up to but excluding 5.9.14 expose a vulnerability that allows any unauthenticated user to request a transform of a private asset. The asset\u2011generation endpoint does not enforce per\u2011asset authorization before generating a signed transform URL, which can then be used to retrieve the content. The result is a partial privilege escalation that permits disclosure of confidential images or media. No remote code execution or denial\u2011of\u2011service capabilities are present, which aligns with the CVSS score of 2.7.", "risk_and_exploitability": "The CVSS score of 2.7 indicates moderate severity, primarily due to the lack of authentication for the request. The EPSS score is below 1\u202f% and the vulnerability is not tracked in CISA\u2019s KEV catalog, suggesting that the likelihood of widespread exploitation is low. Nonetheless, the attack can be performed simply by knowing the asset ID and accessing the transform endpoint, allowing the attacker to exfiltrate private asset data. The impact is limited to confidentiality and integrity of the assets, terminating after the transform is performed. Consequently, administrators should treat it as a low\u2011to\u2011moderate risk that still warrants prompt mitigations."}}}}, "created": "2026-03-25T11:46:58.488542+00:00", "updated": "2026-03-27T09:20:55.452920+00:00", "vendors": ["craftcms", "craftcms$PRODUCT$craftcms"]}