{"id":"CVE-2026-104070","published":"2026-10-06T17:17:12.213","lastModified":"2026-10-09T02:16:54.557","description":"The Crayons plugin for SPIP before 3.5.0 contains a missing authorization vulnerability that allows unauthenticated attackers to modify arbitrary editable object fields by omitting the secu_ anti-forgery parameter in crayons_store.php, causing the authorization dispatcher to resolve an unconditionally-true handler instead of the proper modification check. Attackers can chain this flaw to write a malicious .html skeleton file, disclose sensitive configuration files containing the site secret, and forge a signed ajax context to execute the uploaded skeleton, achieving arbitrary PHP code execution as the web-server user.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-862"],"vendors":[],"products":[],"references":[{"url":"https://blog.spip.net/Mises-a-jour-de-securite-critique-plugins-Crayons-et-Simplog.html?lang=fr","tags":[]},{"url":"https://plugins.spip.net/crayons.html?lang=fr","tags":[]},{"url":"https://www.vulncheck.com/advisories/spip-crayons-plugin-authorization-bypass-rce","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"This vulnerability allows unauthenticated attackers to modify arbitrary object fields and potentially execute arbitrary PHP code, leading to full control over the web application.","exploitability":"Exploitation is relatively straightforward as it requires only the omission of a specific parameter, making it accessible to attackers with basic knowledge of the application.","blast_radius":"If exploited, the impact could be severe, as it allows for full control over the web application, including code execution and data disclosure.","remediation":"Upgrade to Crayons version 3.5.0 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","auth-bypass","web","php","code-execution"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-10-07T08:43:04.578Z"}}