VulnerabilityPublished 25 Feb 2026

CVE-2026-3186: feiyuchuixue sz-boot-parent · Use of Default Password

Affects feiyuchuixue sz-boot-parentSource CVE Database V5

Compare

Public exploit available · CVSS 5.3 Medium.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 17% 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:L/VA:L/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: Low
Vulnerable system availability: Low
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: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to 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 25 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
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), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity 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
feiyuchuixuesz-boot-parent	Affected =1.3.2-beta	Fixed in–
Mavenfeiyuchuixue/sz-boot-parent`pkg:maven/feiyuchuixue/sz-boot-parent`Other threats	Affected =1.3.2-beta	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Organizations should immediately upgrade feiyuchuixue sz-boot-parent to version 1.3.3-beta or later, which includes authorization validation on the password reset interface. Until the upgrade is applied, restrict network access to the password reset API endpoint to trusted administrators only, using network segmentation and firewall rules. Implement monitoring and alerting for unusual password reset activities, especially resets to default passwords or resets initiated from unexpected IP addresses. Conduct regular audits of user accounts and password reset logs to detect unauthorized resets. Enforce strong password policies and consider multi-factor authentication to reduce the impact of compromised accounts. Review and tighten access controls for administrative functions related to user management. Additionally, perform penetration testing focused on authentication and password reset mechanisms to identify any residual weaknesses. Maintain timely patch management processes and subscribe to vendor security advisories for early warnings.

Description

A vulnerability was determined in feiyuchuixue sz-boot-parent up to 1.3.2-beta. Affected by this vulnerability is an unknown functionality of the file /api/admin/sys-user/reset/password/ of the component Password Reset Handler. This manipulation of the argument userId causes use of default password. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 1.3.3-beta addresses this issue. Patch name: aefaabfd7527188bfba3c8c9eee17c316d094802. It is suggested to upgrade the affected component. The project was informed beforehand and acted very professional: "We have added authorization validation to the password reset interface; now only users with the corresponding permissions are allowed to perform password resets."

Impact

This vulnerability allows remote attackers to reset user passwords to a default value without authorization, leading to unauthorized access to user accounts. This can compromise the confidentiality of sensitive information and integrity of user data. Attackers could leverage this to escalate privileges, impersonate legitimate users, or disrupt normal operations by locking out users. Organizations relying on affected versions of sz-boot-parent risk account takeovers, potential data breaches, and operational disruptions. Since the exploit requires no authentication or user interaction, the attack surface is broad, increasing the likelihood of exploitation in exposed environments. The impact is particularly significant for organizations with sensitive or critical systems relying on this software for user management. Although no active exploitation has been reported, the public disclosure increases the risk of opportunistic attacks. Failure to patch could lead to reputational damage, regulatory penalties, and financial losses.

Summary

The vulnerability identified as CVE-2026-3186 affects the feiyuchuixue sz-boot-parent software up to version 1.3.2-beta. The issue resides in the password reset functionality exposed via the API endpoint /api/admin/sys-user/reset/password/. Specifically, the vulnerability arises from improper handling of the userId argument, which allows an attacker to reset any user's password to a default password without proper authorization checks. This means that an unauthenticated remote attacker can manipulate the password reset process to gain access to user accounts by leveraging the default password. The root cause is the lack of authorization validation on the password reset interface, permitting unauthorized password resets. The vendor addressed this vulnerability in version 1.3.3-beta by implementing authorization validation, ensuring only users with appropriate permissions can perform password resets. The vulnerability has a CVSS 4.0 base score of 5.3, indicating a medium severity level. The exploit has been publicly disclosed, but no known exploits in the wild have been reported yet. The vulnerability impacts confidentiality and integrity by enabling unauthorized account access and potential privilege escalation. The attack vector is network-based, requiring no authentication or user interaction, making it relatively easy to exploit remotely. The scope is limited to deployments using the affected versions of sz-boot-parent. The vendor responded professionally by promptly releasing a patch and improving security controls.

References

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Feb 2026, 14:10 UTC

Technical details

References

Community reviews

Related threats