Home/CVE/Yii 2.x through 2.0.15.1 actively converts a wildcard CORS policy into reflecting an arbitrary Origin header value, whic
CVE

CVE-2018-20745

Yii 2.x through 2.0.15.1 actively converts a wildcard CORS policy into reflecting an arbitrary Origin header value, whic

Yii 2.x through 2.0.15.1 actively converts a wildcard CORS policy into reflecting an arbitrary Origin header value, which is incompatible with the CORS security design, and could lead to CORS misconfiguration security problems.

MEDIUM · CVSS 5.9 EPSS 0.00118
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-346Origin Validation Error
▤

Affected Products & Versions

1
yiiframework yii>= 2.0 and <= 2.0.15.1
▣

Scoring & Timeline

5.9
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Jan 2019 · 08:29 AM
CVSS VectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/yiisoft/yii2/issues/16193Issue TrackingThird Party Advisory
https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-chen.pdfThird Party Advisory
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