{"id":"CVE-2024-4990","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-4990","generatedAt":"2026-10-27T23:58:47.904Z","title":"In yiisoft/yii2 version 2.0.48, the base Component class contains a vulnerability where the `__set()` magic method does not validate that the value passed is a valid Behavior class name or configuration.","description":"In yiisoft/yii2 version 2.0.48, the base Component class contains a vulnerability where the `__set()` magic method does not validate that the value passed is a valid Behavior class name or configuration. This allows an attacker to instantiate arbitrary classes, passing parameters to their constructors and invoking setter methods. Depending on the installed dependencies, various types of attacks are possible, including the execution of arbitrary code, retrieval of sensitive information, and unauthorized access.","published":"2025-03-20T10:15:33.000Z","lastModified":"2026-06-17T08:03:20.000Z","status":"Analyzed","sourceIdentifier":"security@huntr.dev","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},"cwe":["CWE-470"],"affected":["yiiframework/yii"],"epss":{"score":0.80232,"percentile":0.99615,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 80.2%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://huntr.com/bounties/4fbdd965-02b6-42e4-b57b-f98f93415b8f","tags":["Exploit"],"source":"security@huntr.dev"},{"url":"https://huntr.com/bounties/4fbdd965-02b6-42e4-b57b-f98f93415b8f","tags":["Exploit"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-4990","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}