CVE-2020-16157

Log Server vulnerability

CVSS

5.4

EPSS

14.4%

EPSS pct

96th

Exploited

No known

A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu.

Affected vendor

Nagios

Affected product

Log Server

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2020-07-30

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 14.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2020-16157

Confirm whether Nagios Log Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-16157.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-16157

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-16157 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2020-16157?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2020-16157.

Start free scan

No credit card. Agentless.

Related vulnerabilities

MEDIUM

CVE-1999-1157

Windows Nt vulnerability

MEDIUM

CVE-1999-1222

Windows Nt vulnerability

MEDIUM

CVE-1999-1223

Internet Information Server vulnerability