VulnerabilityPublished 25 Feb 2026Updated 27 Feb 2026

CVE-2026-3188: feiyuchuixue sz-boot-parent · Path Traversal

Affects feiyuchuixue sz-boot-parentSource CVE Database V5

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Public exploit available · CVSS 5.3 Medium.

Data as of 30 Oct 2026, 11:52 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 30% 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 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 30 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–
GitHubfeiyuchuixue/sz-boot-parent`pkg:github/feiyuchuixue/sz-boot-parent`Other threats	Affected =1.3.2-beta	Fixed in–

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AI-suggested

To mitigate this vulnerability, organizations should upgrade the feiyuchuixue sz-boot-parent component to version 1.3.3-beta or later, which contains the official patch implementing path validity checks on the templateName parameter. If immediate upgrade is not feasible, organizations should implement strict input validation and sanitization on the templateName parameter to prevent directory traversal sequences. Deploying web application firewalls (WAFs) with rules to detect and block path traversal attempts targeting the /api/admin/common/download/templates endpoint can provide temporary protection. Restricting network access to the vulnerable API endpoint through segmentation or firewall rules can reduce exposure. Additionally, monitoring logs for suspicious requests containing directory traversal patterns can help detect exploitation attempts early. Regularly auditing file permissions and ensuring the application runs with the least privilege necessary will limit the impact of any successful exploit. Finally, organizations should stay informed about updates from the vendor and apply security patches promptly to maintain protection.

Description

A security flaw has been discovered in feiyuchuixue sz-boot-parent up to 1.3.2-beta. This affects an unknown part of the file /api/admin/common/download/templates of the component API. Performing a manipulation of the argument templateName results in path traversal. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.3.3-beta is able to mitigate this issue. The patch is named aefaabfd7527188bfba3c8c9eee17c316d094802. It is recommended to upgrade the affected component. The project was informed beforehand and acted very professional: "We have implemented path validity checks on parameters for the template download interface (...)"

Impact

The primary impact of this vulnerability is unauthorized disclosure of sensitive files on affected systems. Attackers exploiting this flaw can read arbitrary files accessible to the application process, potentially exposing configuration files, credentials, or other sensitive data. This can lead to further compromise if attackers gain information to escalate privileges or move laterally within the network. Although the vulnerability does not directly affect system integrity or availability, the confidentiality breach can have significant consequences, including data leaks, intellectual property theft, or exposure of internal system details. Since the vulnerability is remotely exploitable without authentication, it poses a risk to any exposed instances of the vulnerable software, especially in internet-facing environments. Organizations relying on feiyuchuixue sz-boot-parent 1.3.2-beta or earlier versions may face increased risk of targeted attacks or opportunistic scanning. The availability of a public exploit increases the likelihood of exploitation attempts. The impact is particularly critical for organizations handling sensitive or regulated data, as unauthorized file access could violate compliance requirements and damage reputation.

Summary

CVE-2026-3188 is a path traversal vulnerability identified in the feiyuchuixue sz-boot-parent software component, specifically affecting versions up to 1.3.2-beta. The vulnerability resides in the API endpoint /api/admin/common/download/templates, where the templateName parameter is insufficiently validated. An attacker can manipulate this parameter to traverse the file system directory structure, potentially accessing sensitive files outside the intended directory scope. This type of vulnerability arises when user input is not properly sanitized, allowing directory traversal sequences (e.g., ../) to access restricted files. The vulnerability is remotely exploitable without requiring authentication or user interaction, making it accessible to unauthenticated attackers over the network. The vendor has released a patch in version 1.3.3-beta that introduces path validity checks to ensure that the templateName parameter cannot be used to access unauthorized paths. The patch is identified by commit aefaabfd7527188bfba3c8c9eee17c316d094802. While no active exploitation has been observed in the wild, a public exploit is available, increasing the risk of attacks. The CVSS 4.0 base score is 5.3, reflecting medium severity due to the ease of exploitation and potential confidentiality impact, but limited integrity and availability impact. The vulnerability does not require privileges or user interaction, and the scope is limited to the affected component. Organizations using the vulnerable versions should prioritize upgrading to the fixed version to prevent unauthorized file access and potential data leakage.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 5 Mar 2026, 09:53 UTC

Technical details

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