CVE-2025-4859
Published: 18 May 2025
Summary
CVE-2025-4859 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Dlink Dap-2695 Firmware. Its CVSS base score is 4.8 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique JavaScript (T1059.007); ranked at the 47.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-15615
Vulnerability details
A vulnerability was found in D-Link DAP-2695 120b36r137_ALL_en_20210528. It has been rated as problematic. This issue affects some unknown processing of the file /adv_macbypass.php of the component MAC Bypass Settings Page. The manipulation of the argument f_mac leads to cross…
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site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well. This vulnerability only affects products that are no longer supported by the maintainer.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The stored XSS vulnerability in the MAC Bypass Settings page (/adv_macbypass.php) enables injection and execution of JavaScript code in the browser of authenticated users viewing the page, directly facilitating T1059.007 (JavaScript under Command and Scripting Interpreter).
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Validates web inputs to reject script-related content that could produce XSS.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.
Directly prevents execution of attacker-supplied code written into data memory regions.