SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2011-4836

Cross-site scripting (XSS) vulnerability in the web interface in HomeSeer HS2 2.5.0.20 allows remote attackers to inject arbitrary web script or HTML via a request for a crafted URI.

EXPLOIT ✓MEDIUM 4.3EPSS 1.54%

Does this matter?

A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 1.5%. Treat it as high on anything reachable from the internet.

Description

Cross-site scripting (XSS) vulnerability in the web interface in HomeSeer HS2 2.5.0.20 allows remote attackers to inject arbitrary web script or HTML via a request for a crafted URI.

CVSS 2.0
4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS
1.54% probability · 75th percentile
Public exploits
1 in Exploit-DB · verified · first 8 December 2011
CISA KEV
Not listed
Weakness
CWE-79
Affected
homeseer/homeseer hs2
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.54%26 October 202626 October 2026

EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-36429source ↗HomeSeer HS2 2.5.0.20 - Web Interface Log Viewer Page URI Cross-Site Scriptinghardware · Silent Dreamremote8 December 2011yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.