Credential interception via default cleartext WebFig
Published Oct 27, 2025 · Updated Oct 27, 2025
Cleartext transmission in MikroTik RouterOS 7.14.2 and SwOS 2.18 allows man-in-the-middle attackers to intercept WebFig credentials. WebFig loads its login page and JavaScript over HTTP, stores the username and password in window.sessionStorage, and sends authentication traffic without TLS. Exploitation requires an on-path position between an administrator's browser and the device; captured credentials permit management access and configuration changes.
Summary
What happened
Cleartext transmission in MikroTik RouterOS 7.14.2 and SwOS 2.18 allows man-in-the-middle attackers to intercept WebFig credentials. WebFig loads its login page and JavaScript over HTTP, stores the username and password in window.sessionStorage, and sends authentication traffic without TLS. Exploitation requires an on-path position between an administrator's browser and the device; captured credentials permit management access and configuration changes.
The record
- CVE
- CVE-2025-61481
- Published
- Oct 27, 2025
- Updated
- Oct 27, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-1188, CWE-319, CWE-200, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 27, 2025CVE publishedPublication date reported by the CVE source.
- Oct 27, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- N3mes1s WebFig cleartext HTTP reproductionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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