CVE-2020-36905Public exploitNetwork attack vector

Session hijacking via proxy-loaded remote scripts

Published Jan 6, 2026 · Updated Jan 6, 2026

Remote script inclusion in FIBARO Home Center 2, Home Center 3, and Home Center Lite 5.021.38 and earlier allows remote attackers to hijack sessions. The undocumented /api/proxy endpoint accepts an attacker-controlled url GET parameter and returns external JavaScript or VBScript for execution in a user's browser. Exploitation requires a user to open a crafted proxy URL; execution in the Home Center origin permits session theft or page-content manipulation.

CVSS severity5.1
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote script inclusion in FIBARO Home Center 2, Home Center 3, and Home Center Lite 5.021.38 and earlier allows remote attackers to hijack sessions. The undocumented /api/proxy endpoint accepts an attacker-controlled url GET parameter and returns external JavaScript or VBScript for execution in a user's browser. Exploitation requires a user to open a crafted proxy URL; execution in the Home Center origin permits session theft or page-content manipulation.

The record

CVE
CVE-2020-36905
Published
Jan 6, 2026
Updated
Jan 6, 2026
Vendor
FIBARO
Product
Home Center Lite
Classifications
CWE-829, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 6, 2026Record 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=0 <=5.021.38

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FIBARO · Home Center Liteversion=0 <=5.021.38
FIBARO · Home Center 3version=0 <=5.021.38
FIBARO · Home Center 2version=0 <=5.021.38

Published CVSS scores

7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-829Inclusion of Functionality from Untrusted Control Sphere
T1189Drive-by Compromise

Public exploit references

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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