{"id":"CVE-2020-15148","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-15148","generatedAt":"2026-11-05T01:56:33.403Z","title":"Yii 2 (yiisoft/yii2) before version 2.0.38 is vulnerable to remote code execution if the application calls `unserialize()` on arbitrary user input.","description":"Yii 2 (yiisoft/yii2) before version 2.0.38 is vulnerable to remote code execution if the application calls `unserialize()` on arbitrary user input. This is fixed in version 2.0.38. A possible workaround without upgrading is available in the linked advisory.","published":"2020-09-15T19:15:13.000Z","lastModified":"2026-06-17T02:56:09.000Z","status":"Modified","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":10,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-502"],"affected":["yiiframework/yii"],"epss":{"score":0.77538,"percentile":0.99561,"date":"2026-11-03","history":[{"date":"2026-10-03","score":0.77538,"percentile":0.99551}]},"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 77.5%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99","tags":["Patch","Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj","tags":["Mitigation","Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj","tags":["Mitigation","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-15148","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."}