Unauthenticated open redirect via unchecked ref parameter
Published Jun 15, 2025 · Updated Jun 16, 2025
Open redirect in Astun Technology iShare Maps 5.4.0 allows remote attackers to redirect users through a crafted atCheckJS.aspx request. The atCheckJS.aspx endpoint accepts the attacker-controlled ref argument as the redirect destination, but no finer validation detail is public. No authentication is required, but a user must follow the crafted link before navigation reaches the attacker-selected site.
Summary
What happened
Open redirect in Astun Technology iShare Maps 5.4.0 allows remote attackers to redirect users through a crafted atCheckJS.aspx request. The atCheckJS.aspx endpoint accepts the attacker-controlled ref argument as the redirect destination, but no finer validation detail is public. No authentication is required, but a user must follow the crafted link before navigation reaches the attacker-selected site.
The record
- CVE
- CVE-2025-6089
- Published
- Jun 15, 2025
- Updated
- Jun 16, 2025
- Vendor
- Astun Technology
- Product
- iShare Maps
- Classifications
- CWE-601, T1566.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 15, 2025CVE publishedPublication date reported by the CVE source.
- Jun 16, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.4.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- atCheckJS.aspx ref open-redirect proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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