Yiiframework Yii Improper Protection of Alternate Path Vulnerability
yiiframework — Yii
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.
9.0
84.6%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Published
- Apr 10, 2025
- Modified
- Oct 21, 2025
- Added to KEV
- May 2, 2025
- Federal patch due
- May 23, 2025
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2024-58136, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2024-58136 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-2024-58136?
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.
How severe is CVE-2024-58136?
CVE-2024-58136 has a CVSS base score of 9.0 out of 10 (CVSS 3.1).
Is CVE-2024-58136 actively exploited in the wild?
Yes. CVE-2024-58136 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added May 2, 2025, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2024-58136?
84.6% - meaning FIRST.org's EPSS model estimates a 84.6% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2024-58136?
Yes - a public Nuclei template referencing CVE-2024-58136 exist in public repositories we checked.
What type of vulnerability is CVE-2024-58136?
CVE-2024-58136 is classified under CWE-424 (CWE-424 Improper Protection of Alternate Path).
Cross-checked against
Impactr finds and proves whether CVE-2024-58136 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.