CVE-2020-27366Network attack vector

Browser script execution via unsanitized SSID names

Published Aug 28, 2023 · Updated Oct 2, 2024

Cross-site scripting in wlscanresults.html in Humax HGB10R-02 firmware 1.0.03 allows physically proximate attackers to execute browser scripts. The page inserts nearby SSID names into wireless scan output without adequate sanitization, allowing injected JavaScript to execute. Exploitation requires a crafted nearby SSID and a user viewing wireless scan results; the script runs in that page's browser context.

CVSS severity6.1
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in wlscanresults.html in Humax HGB10R-02 firmware 1.0.03 allows physically proximate attackers to execute browser scripts. The page inserts nearby SSID names into wireless scan output without adequate sanitization, allowing injected JavaScript to execute. Exploitation requires a crafted nearby SSID and a user viewing wireless scan results; the script runs in that page's browser context.

The record

CVE
CVE-2020-27366
Published
Aug 28, 2023
Updated
Oct 2, 2024
Vendor
Humax
Product
HGB10R-02 Firmware
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 2024Record 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.

  1. Affected versionversion=1.0.03

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Humax · HGB10R-02 Firmwareversion=1.0.03

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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