CVE-2025-8852VulnerabilityPublished 11 Aug 2025

CVE-2025-8852: WuKongOpenSource WukongCRM · Information Exposure Through Error Message

Affects WuKongOpenSource WukongCRMSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: Low
Vulnerable system integrity: None
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
WuKongOpenSource WukongCRM	Affected =11.0	Fixed in–

AI-suggested

Given the absence of an official patch, European organizations should implement the following specific mitigations: 1) Restrict access to the /adminFile/upload endpoint using network-level controls such as IP whitelisting or VPN access to limit exposure to trusted users only. 2) Implement Web Application Firewall (WAF) rules to detect and block anomalous requests targeting the upload endpoint, particularly those that could trigger error messages. 3) Review and harden error handling configurations in WukongCRM to suppress detailed error messages from being returned to clients, ensuring only generic error responses are provided. 4) Conduct thorough logging and monitoring of access to the vulnerable endpoint to detect potential exploitation attempts promptly. 5) Engage with WuKongOpenSource for updates on patches or security advisories and plan for timely application of any forthcoming fixes. 6) Perform security assessments and penetration testing focused on the upload functionality to identify and remediate related weaknesses. These targeted measures go beyond generic advice by focusing on access control, error message management, and proactive detection tailored to this specific vulnerability.

Description

A vulnerability was identified in WuKongOpenSource WukongCRM 11.0. This affects an unknown part of the file /adminFile/upload of the component API Response Handler. The manipulation leads to information exposure through error message. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Impact

For European organizations using WukongCRM 11.0, this vulnerability poses a risk of sensitive information leakage through error messages. Such exposure can facilitate targeted attacks by revealing system details, potentially leading to privilege escalation, data breaches, or further exploitation of other vulnerabilities. Organizations handling sensitive customer data, financial information, or critical business operations via WukongCRM could face increased risk of data compromise or reputational damage. The remote and unauthenticated nature of the vulnerability means attackers can probe systems without prior access, increasing the attack surface. While the direct impact is limited to information exposure, the indirect consequences could be significant if attackers leverage the disclosed information to mount more severe attacks. Compliance with European data protection regulations such as GDPR could be jeopardized if sensitive personal data is exposed or if the vulnerability leads to a broader breach.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 11 Aug 2025, 14:33 UTC

Technical details

References

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