What is CVE-2026-39850?

CVE-2026-39850 is a high-severity vulnerability in Yiisoft Yii2, classified under Improper Input Validation. CVSS score: 7.4/10. Published 2026-05-20.

How severe is CVE-2026-39850?

High severity. CVSS v3 base score is 7.4 out of 10.

Improper input validation in Yiisoft Yii2

CVE-2026-39850

Yii 2 is a PHP application framework. Versions 2.0.54 and prior contain flawed logic in the core view rendering method View::renderPhpFile() that leads to Local File Inclusion. The function calls extract($_params_, EXTR_OVERWRITE) before t…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.000 (6.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Yiisoft Yii2 — versions < 2.0.55

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-39850?: CVE-2026-39850 is a high-severity vulnerability in Yiisoft Yii2, classified under Improper Input Validation. CVSS score: 7.4/10. Published 2026-05-20.
How severe is CVE-2026-39850?: High severity. CVSS v3 base score is 7.4 out of 10.