CVE-2024-58136

Exp

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.

Published: 2025-04-10 Last update: 2025-11-05 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2024-58136 is rated Critical Active Threat (100/100): CVSS Critical severity, with high exploitation likelihood (EPSS 78.95%, 99th percentile). Core evidence: CISA KEV confirms active exploitation (added 2025-05-02) affecting Yiiframework / Yii. a weakness (CWE-424) Unauthenticated remote administrative access may be possible. EPSS rose +19.92% over the last day, indicating growing attacker interest. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2024-58136

Name: Yiiframework Yii Improper Protection of Alternate Path Vulnerability · CISA KEV detail

Exploit added: 2025-05-02

Action due: 2025-05-23

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.

Public exploit references (Exploit-DB) for CVE-2024-58136

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-58136

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-19 59.03% 78.95% +19.92%
2 2026-05-18 57.53% 59.03% +1.49%
3 2026-03-24 57.53%

Full EPSS history (31 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-58136

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.2 6.0 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 5.9 [email protected]

Weakness enumeration for CVE-2024-58136

GitHub Security Advisory for CVE-2024-58136

GHSA-ggwg-cmwp-46r5 · Severity: critical · Ecosystem: composer — yiisoft/yii2 Mishandles the Attaching of Behavior Defined by a `__class` Array Key

Affected software / configurations for CVE-2024-58136

Vendor Product Version Raw CPE
yiiframework yii < 2.0.52 cpe:2.3:a:yiiframework:yii:*:*:*:*:*:*:*:*

References for CVE-2024-58136

cvelogic Threat Intelligence