What it is
CVE-2024-58136 is an unauthenticated vulnerability affecting 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...
Vulnerability report
Exploited in the wild
Confirmed confidence
In CISA KEV
CVE-2024-58136
Yii
yiiframework / Yii · affected before 2.0.52
- Severity
- CVSS 9.0 · Critical
- Confidence
- Confirmed
- Exploit status
- Exploited in the wild
- EPSS
- 84.6%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.
Who is affected?
yiiframework / Yii affected before 2.0.52.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
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.
Vendor
Product
Affected
Status
yiiframework
Yii
Before 2.0.52
Affected
- Published
- 10 Apr 2025
- Exploitation Reported
- 02 May 2025
- Attack vector
- Remote
- Complexity
- High
- Privileges
- None
- User interaction
- None
Tags
nuclei_scanner
cisa
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2024-58136
- GitHub — yiisoft/yii2 github.com · CVE Record https://github.com/yiisoft/yii2/pull/20232
- GitHub — yiisoft/yii2 github.com · CVE Record https://github.com/yiisoft/yii2/pull/20232#issuecomment-2252459709
- GitHub — yiisoft/yii2 github.com · CVE Record https://github.com/yiisoft/yii2/commit/40fe496eda529fd1d933b56a1022ec...
- GitHub — yiisoft/yii2 github.com · CVE Record https://github.com/yiisoft/yii2/compare/2.0.51...2.0.52
- yiiframework.com/news/709/please-upgrade-to-yii-2-0-52 yiiframework.com · CVE Record https://www.yiiframework.com/news/709/please-upgrade-to-yii-2-0-52
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CISA
Independent exploitation attestation added to the KEV Intelligence record.
Proof of concept available
Nuclei Templates
Public scanner or PoC coverage increases practical exploitability.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| All CISA Advisories First | 2025-05-05 08:35 UTC |
| CISA | 2026-06-02 14:08 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
Nuclei template detected 01 Jun 2026.
View Nuclei template (opens in new tab)Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →Scanner Artifacts
Scanner and exploit-framework references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-58136.yaml | 01 Jun 2026 |
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
9.0
Critical
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS
84.6%
Recent mention · All CISA Advisories
CISA Adds Two Known Exploited Vulnerabilities to Catalog
CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2025-34028 Commvault Command Center Path Traversal Vulnerability CVE-2024-58136 Yiiframework Yii Improper Protection of Alternate Path...
Read full advisoryAll Mentions
Recent mention · All CISA Advisories
CISA Adds Two Known Exploited Vulnerabilities to CatalogAll CISA Advisories · 02 May 2025
CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2025-34028 Commvault Command Center Path Traversal Vulnerability CVE-2024-58136 Yiiframework Yii Improper Protection of Alternate Path Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a...
Recent mention · TheHackerNews
Hackers Exploit Critical Craft CMS Flaws; Hundreds of Servers Likely CompromisedTheHackerNews · 28 Apr 2025
Threat actors have been observed exploiting two newly disclosed critical security flaws in Craft CMS in zero-day attacks to breach servers and gain unauthorized access. The attacks, first observed by Orange Cyberdefense SensePost on February 14, 2025, involve chaining the below vulnerabilities - CVE-2024-58136 (CVSS score: 9.0) - An improper protection of alternate path flaw in the Yii PHP
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
Yii2 PHP Framework < 2.0.52 - Remote Code Execution
nuclei · Created Unknown
Timeline
From disclosure to observed exploitation
-
Public PoC available
Public proof-of-concept code published
-
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
Nuclei template available
Scanner coverage available
-
Added to KEV Intelligence KEV Feed
High-confidence, third-party attested exploitation
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2024-58136
Free JSON includes basic KEV fields{
"cve_id": "CVE-2024-58136",
"confidence": "Confirmed",
"cvss_score": 9.0,
"cvss_estimated": false,
"epss_score": 0.8464,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.