What is CVE-2018-17981?

CVE-2018-17981 is a medium-severity vulnerability in Lifesize Express 220, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-01-22.

How severe is CVE-2018-17981?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Lifesize Express 220

CVE-2018-17981

Lifesize Express ls ex2_4.7.10 2000 (14) devices allow XSS via the interface/interface.php brand parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-01-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Lifesize Express 220
Lifesize Express 220 Firmware — versions ls_ex2_4.7.10_2000_(14), ls_ex2_4.7.10_2000_\(14\)
Lifesize Room 220i
Lifesize Room 220i Firmware — versions ls_rm2_4.11.8_(14), ls_rm2_4.11.8_\(14\)

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

sku11army.blogspot.com/2020/01/lifesize-devices-allow-xss-via.html (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-17981?: CVE-2018-17981 is a medium-severity vulnerability in Lifesize Express 220, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-01-22.
How severe is CVE-2018-17981?: Medium severity. CVSS v3 base score is 6.1 out of 10.