VulnerabilityPublished 13 Jul 2025

CVE-2025-7552: Dromara Northstar · Improper Access Controls

Affects Dromara NorthstarSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium · fixed in 7.3.6 : update Dromara Northstar when convenient.

Data as of 27 Oct 2026, 05:11 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 26% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 7.3.6

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:X

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

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.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 13 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 26 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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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
Mavenorg.dromara/northstar`pkg:maven/org.dromara/northstar`Other threats	Affected 7.3.0 – 7.3.5 6 affected builds	Fixed in–

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

AI-suggested

European organizations should prioritize upgrading Dromara Northstar to version 7.3.6 or later to remediate this vulnerability. Until the upgrade is applied, organizations should implement strict network segmentation and firewall rules to restrict access to Northstar services only to trusted internal networks and authenticated users. Monitoring and logging of access attempts to the Path Handler component should be enhanced to detect anomalous or unauthorized requests. Employing Web Application Firewalls (WAFs) with custom rules to detect and block suspicious request manipulations targeting the preHandle function can provide additional protection. Regular security assessments and code reviews of custom integrations with Northstar should be conducted to ensure no additional access control weaknesses exist. Finally, organizations should maintain an incident response plan to quickly address any exploitation attempts.

Description

A vulnerability was found in Dromara Northstar up to 7.3.5. It has been rated as critical. Affected by this issue is the function preHandle of the file northstar-main/src/main/java/org/dromara/northstar/web/interceptor/AuthorizationInterceptor.java of the component Path Handler. The manipulation of the argument Request leads to improper access controls. The attack may be launched remotely. Upgrading to version 7.3.6 is able to address this issue. The patch is identified as 8d521bbf531de59b09b8629a9cbf667870ad2541. It is recommended to upgrade the affected component.

Impact

For European organizations using Dromara Northstar, this vulnerability poses a risk of unauthorized access to internal systems or data, potentially leading to data leakage, unauthorized operations, or disruption of services. Given that Northstar is a middleware or service framework, exploitation could allow attackers to bypass security controls, escalate privileges, or access sensitive business logic. This could impact confidentiality and integrity of data processed by the platform. Organizations in sectors with stringent data protection requirements, such as finance, healthcare, and government, could face regulatory and reputational damage if exploited. The remote and unauthenticated nature of the attack vector increases the urgency for mitigation. However, the medium severity and lack of known active exploits suggest that immediate widespread impact is limited but should not be underestimated.

Summary

CVE-2025-7552 is a medium-severity vulnerability affecting Dromara Northstar versions 7.3.0 through 7.3.5. The flaw exists in the preHandle function within the AuthorizationInterceptor.java file, specifically in the Path Handler component. The vulnerability arises due to improper access control when processing the Request argument, allowing an attacker to manipulate this argument to bypass authorization checks. This can lead to unauthorized access to protected resources or functionalities. The vulnerability can be exploited remotely without requiring user interaction or prior authentication, increasing the risk of exploitation. The CVSS 4.0 base score is 5.3, reflecting a medium impact primarily due to limited confidentiality, integrity, and availability impacts, and the requirement for low privileges to exploit. The issue is resolved in version 7.3.6, and upgrading to this version or later is recommended. No known exploits are currently reported in the wild, but the vulnerability’s nature suggests that exploitation could lead to unauthorized access and potential lateral movement within affected environments.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Jul 2025, 00:01 UTC

Technical details

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