CVE-2026-2141
Published: 08 February 2026
Summary
CVE-2026-2141 is a medium-severity Incorrect Privilege Assignment (CWE-266) vulnerability in 5Kcrm Wukongcrm. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 5.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Documented procedures facilitate correct implementation and ongoing management of authorization decisions.
Periodic reviews identify and correct flaws in authorization decisions or enforcement.
Specifying access authorizations for each account and requiring approvals for account requests enforces proper authorization decisions.
Establishing permitted attributes and values, plus auditing changes, ensures authorization decisions are based on correctly managed policy data.
Explicitly mandates authorizing remote access types before permitting connections, directly mitigating improper authorization.
The control explicitly requires authorization of each wireless access type prior to permitting connections.
Mandating explicit authorization of mobile device connections reduces the risk of improper authorization decisions for system access.
Requires explicit authorization for individuals to use external systems to access or handle organization-controlled information.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Authorization bypass in web-facing CRM URL handler directly enables remote exploitation for privilege escalation (T1068) and public app exploitation (T1190).
NVD Description
A security flaw has been discovered in WuKongOpenSource WukongCRM up to 11.3.3. This affects an unknown part of the file gateway/src/main/java/com/kakarote/gateway/service/impl/PermissionServiceImpl.java of the component URL Handler. Performing a manipulation results in improper authorization. Remote exploitation of the attack is possible.…
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The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Deeper analysisAI
CVE-2026-2141 is an improper authorization vulnerability affecting WuKongOpenSource WukongCRM versions up to 11.3.3. The flaw resides in an unknown function within the file gateway/src/main/java/com/kakarote/gateway/service/impl/PermissionServiceImpl.java, part of the URL Handler component. It stems from issues mapped to CWE-266 (Incorrect Privilege Assignment), CWE-285 (Improper Authorization), and CWE-863 (Incorrect Authorization), with a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
The vulnerability enables remote exploitation by attackers who possess low privileges, such as authenticated users with basic access. Exploitation involves manipulating requests to the affected URL Handler, bypassing authorization checks and potentially leading to limited impacts: low-level disclosure of confidential information, modification of data, or denial of service affecting availability.
Advisories from VulDB and a related GitHub issue in SourByte-Lab detail the vulnerability, confirm remote exploitability, and note that a public exploit has been released. The vendor was notified early but provided no response, and no patches or mitigations are mentioned in the available references.
In notable context, the public availability of the exploit increases the risk of active attacks against unpatched WukongCRM instances.
Details
- CWE(s)