What is CVE-2020-27691?

CVE-2020-27691 is a medium-severity vulnerability in Imomobile Verve Connect Vh510, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-11-04.

How severe is CVE-2020-27691?

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

XSS in Imomobile Verve Connect Vh510

CVE-2020-27691

The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 allows XSS via URLBlocking Settings, SNMP Settings, and System Log Settings.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-11-04 · 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: 0.009 (58.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Imomobile Verve Connect Vh510 — versions l0am095a
Imomobile Verve Connect Vh510 Firmware

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

6point6.co.uk/insights/security-advisory-relish-4g-hub-vh510/ (Third Party Advisory)
6point6.co.uk/wp-content/uploads/2020/10/Relish-4G-VH510-Hub-Full-Disclosure-v1… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-27691?: CVE-2020-27691 is a medium-severity vulnerability in Imomobile Verve Connect Vh510, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-11-04.
How severe is CVE-2020-27691?: Medium severity. CVSS v3 base score is 6.1 out of 10.