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CVE-2025-48734— Apache Commons BeanUtils: PropertyUtilsBean does not suppresses an enum's declaredClass property by default

Quick assessment

Affected
Apache Software Foundation Apache Commons BeanUtils 1.x
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Commons是美国阿帕奇（Apache）基金会的一个专注于可重用 Java 组件各个方面的 Apache 项目。 Apache Commons存在安全漏洞，该漏洞源于访问控制不当，可能导致攻击者通过枚举对象的declaredClass属性访问类加载器并执行任意代码。

AI Predicted 9.8 Difficulty: Easy EPSS 1.70% · P75

Affected Version Matrix 2

VendorProduct Version RangeStatus
Apache Software Foundation Apache Commons BeanUtils 1.x 1.0< 1.11.0 affected
Apache Software Foundation Apache Commons BeanUtils 2.x 2.0.0-M1< 2.0.0-M2 affected
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I. Basic Information for CVE-2025-48734

Vulnerability Information
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Vulnerability Title
Apache Commons BeanUtils: PropertyUtilsBean does not suppresses an enum's declaredClass property by default
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Access Control vulnerability in Apache Commons. A special BeanIntrospector class was added in version 1.9.2. This can be used to stop attackers from using the declared class property of Java enum objects to get access to the classloader. However this protection was not enabled by default. PropertyUtilsBean (and consequently BeanUtilsBean) now disallows declared class level property access by default. Releases 1.11.0 and 2.0.0-M2 address a potential security issue when accessing enum properties in an uncontrolled way. If an application using Commons BeanUtils passes property paths from an external source directly to the getProperty() method of PropertyUtilsBean, an attacker can access the enum’s class loader via the “declaredClass” property available on all Java “enum” objects. Accessing the enum’s “declaredClass” allows remote attackers to access the ClassLoader and execute arbitrary code. The same issue exists with PropertyUtilsBean.getNestedProperty(). Starting in versions 1.11.0 and 2.0.0-M2 a special BeanIntrospector suppresses the “declaredClass” property. Note that this new BeanIntrospector is enabled by default, but you can disable it to regain the old behavior; see section 2.5 of the user's guide and the unit tests. This issue affects Apache Commons BeanUtils 1.x before 1.11.0, and 2.x before 2.0.0-M2.Users of the artifact commons-beanutils:commons-beanutils 1.x are recommended to upgrade to version 1.11.0, which fixes the issue. Users of the artifact org.apache.commons:commons-beanutils2 2.x are recommended to upgrade to version 2.0.0-M2, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Commons 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Commons是美国阿帕奇（Apache）基金会的一个专注于可重用 Java 组件各个方面的 Apache 项目。 Apache Commons存在安全漏洞，该漏洞源于访问控制不当，可能导致攻击者通过枚举对象的declaredClass属性访问类加载器并执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Commons BeanUtils 1.x 1.0 ~ 1.11.0 -
Apache Software Foundation Apache Commons BeanUtils 2.x 2.0.0-M1 ~ 2.0.0-M2 -

II. Public POCs for CVE-2025-48734

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III. Intelligence Information for CVE-2025-48734

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Mailing List Discussions for CVE-2025-48734 (1)

Same Patch Batch · Apache Software Foundation · 2025-05-28 · 4 CVEs total

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CVE-2025-27522 Apache InLong: JDBC Vulnerability during verification processing

IV. Related Vulnerabilities

Same vendor: Apache Software Foundation
Same weakness: CWE-284

V. Comments for CVE-2025-48734

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