CVE-2024-58136

Yiiframework Yii Improper Protection of Alternate Path Vulnerability

Critical 9.0
Exploited: added to CISA KEV 2 May 2025

Description

Yii 2 before 2.0.52 mishandles the attaching of behavior that is defined by an __class array key, a CVE-2024-4990 regression, as exploited in the wild in February through April 2025.

Key facts

Published: 10 Apr 2025
Last changed: 21 Oct 2025
Assigned by: mitre
KEV added: 2 May 2025
KEV fix due: 23 May 2025
EPSS: 87.757% likely to be exploited in the next 30 days, higher than 99.764% of CVEs (scores for 15 Nov 2026)
SSVC (CISA): Exploitation: active; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

9.0CVSS 3.1, Criticalfrom the CNA (mitre)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

What to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Vendor	Product	Versions
yiiframework	Yii	Default status: unaffected 2 up to but excluding 2.0.52 (affected)