Deserialization in Yiiframework Yii
CVE-2020-15148
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.9 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H.
EPSS exploit prediction
EPSS: 0.775 (99.6th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.788 · newest: 0.775 · change: -0.012
Affected products
- Yiiframework Yii
- Yiisoft Yii2 — versions < 2.0.38
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj (Third Party Advisory, Mitigation)
- github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15148?
- CVE-2020-15148 is a high-severity vulnerability in Yiiframework Yii, classified under Deserialization of Untrusted Data. CVSS score: 8.9/10. Published 2020-09-15.
- How severe is CVE-2020-15148?
- High severity. CVSS v3 base score is 8.9 out of 10.
- Is CVE-2020-15148 known to be exploited?
- 30 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.