CVE-2025-12923VulnerabilityPublished 10 Nov 2025

CVE-2025-12923: liweiyi ChestnutCMS · Path Traversal

Affects liweiyi ChestnutCMSSource CVE Database V5

Not known to be exploited · CVSS 5.1 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score

5.1Medium

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

EPSS: 0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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: High
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: High: The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
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 10 Nov 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
GitHubliweiyi/ChestnutCMS`pkg:github/liweiyi/ChestnutCMS`Other threats	Affected =1.5.0 =1.5.1 =1.5.2 =1.5.3 =1.5.4 =1.5.5 =1.5.6 =1.5.7 =1.5.8	Fixed in–

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

AI-suggested

1. Immediately restrict access to the /dev-api/common/download endpoint to trusted administrators only, using network-level controls such as firewalls or VPNs. 2. Implement strict input validation and sanitization on the 'path' parameter to prevent directory traversal sequences (e.g., '..', '%2e%2e'). 3. Monitor logs for suspicious requests attempting path traversal patterns targeting the vulnerable endpoint. 4. Enforce the principle of least privilege to limit user accounts with high privileges that can exploit this vulnerability. 5. Regularly audit and review user permissions and access controls within ChestnutCMS. 6. Stay alert for official patches or updates from liweiyi and apply them promptly once available. 7. Consider deploying web application firewalls (WAFs) with custom rules to block path traversal attempts. 8. Conduct internal penetration testing to verify the effectiveness of mitigations and identify any residual risks.

Description

A vulnerability was determined in liweiyi ChestnutCMS up to 1.5.8. This vulnerability affects the function resourceDownload of the file /dev-api/common/download. Executing manipulation of the argument path can lead to path traversal. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Impact

For European organizations, this vulnerability poses a moderate risk primarily to confidentiality. Unauthorized access to sensitive files could lead to leakage of intellectual property, customer data, or configuration files containing credentials. Organizations using ChestnutCMS in sectors such as government, finance, healthcare, or critical infrastructure could face regulatory compliance issues under GDPR if personal data is exposed. The requirement for high privileges reduces the likelihood of widespread exploitation but insider threats or compromised accounts could leverage this vulnerability. The absence of known active exploits currently lowers immediate risk but the public disclosure means attackers may develop exploits soon. Disruption to business operations is unlikely, but reputational damage and potential legal consequences from data breaches are significant concerns. European entities relying on ChestnutCMS for content management should assess their exposure and prioritize remediation to mitigate data confidentiality risks.

Summary

CVE-2025-12923 is a path traversal vulnerability identified in liweiyi ChestnutCMS versions 1.5.0 through 1.5.8. The flaw resides in the resourceDownload function within the /dev-api/common/download API endpoint, where the 'path' parameter is insufficiently validated. This allows an attacker with high privileges to craft a request that traverses directories on the server filesystem, potentially accessing sensitive files outside the intended directory scope. The vulnerability is remotely exploitable without user interaction, but requires the attacker to have elevated privileges on the system, which limits the ease of exploitation. The vulnerability has a CVSS 4.0 base score of 5.1 (medium severity), reflecting its moderate impact on confidentiality and limited scope. No known public exploits are currently active, but the public disclosure increases the risk of future exploitation. The vulnerability does not impact integrity or availability directly but poses a confidentiality risk by exposing sensitive server files. No official patches or fixes have been linked yet, so mitigation relies on access controls and input validation until an update is released.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 17 Nov 2025, 01:14 UTC

Technical details

References

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