CVE-2025-8128VulnerabilityPublished 25 Jul 2025

CVE-2025-8128: zhousg letao · Unrestricted Upload

Affects zhousg letaoSource 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 28% 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 Jul 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

AI-suggested

European organizations should immediately audit their deployments of 'zhousg letao' to identify affected versions, focusing on the commit 7d8df0386a65228476290949e0413de48f7fbe98 or earlier. Since no official patches are available, organizations should implement strict input validation and sanitization on the 'pictrdtz' parameter to prevent arbitrary file uploads. Employing web application firewalls (WAFs) with custom rules to detect and block suspicious upload attempts can provide a temporary safeguard. Restricting file upload directories with proper permissions and disabling execution rights on upload folders can mitigate the risk of code execution. Monitoring logs for unusual upload activity and conducting regular security assessments are essential. Organizations should engage with the vendor for updates and apply patches promptly once available. Network segmentation and least privilege principles should be enforced to limit potential lateral movement if exploitation occurs.

Description

A vulnerability, which was classified as critical, has been found in zhousg letao up to 7d8df0386a65228476290949e0413de48f7fbe98. This issue affects some unknown processing of the file routes\bf\product.js. The manipulation of the argument pictrdtz leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available.

Impact

For European organizations using the 'zhousg letao' product, this vulnerability poses a risk of unauthorized file uploads that could lead to remote code execution, data leakage, or service disruption. Given the medium severity and the lack of authentication or user interaction required, attackers could exploit this vulnerability remotely to compromise affected systems. This is particularly concerning for organizations handling sensitive data or critical services, as attackers might upload web shells or malware to pivot within networks. The rolling release nature of the product may delay patch deployment, increasing exposure time. Additionally, if the product is integrated into supply chains or customer-facing applications, the impact could extend beyond the immediate environment, affecting business continuity and regulatory compliance under GDPR and other European data protection laws.

Summary

CVE-2025-8128 is a medium-severity vulnerability affecting the 'zhousg letao' product, specifically up to the commit version 7d8df0386a65228476290949e0413de48f7fbe98. The vulnerability arises from improper handling of file uploads in the file routes\bf\product.js, where the argument 'pictrdtz' can be manipulated to allow unrestricted file uploads. This flaw enables an attacker to remotely upload arbitrary files without authentication or user interaction, potentially leading to unauthorized code execution, data compromise, or service disruption. The product uses a rolling release model, which complicates precise version tracking and patch availability. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:L), no user interaction (UI:N), and low impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Although the CVSS score is 5.3 (medium), the unrestricted upload capability can be leveraged for further exploitation depending on the server environment and file handling. No known exploits are currently in the wild, and no patches have been publicly disclosed. The vulnerability disclosure date is July 25, 2025.

References

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