CVE-2020-23839

Getsimple Cms vulnerability

CVSS

6.1

EPSS

10.5%

EPSS pct

95th

Exploited

No known

A Reflected Cross-Site Scripting (XSS) vulnerability in GetSimple CMS v3.3.16, in the admin/index.php login portal webpage, allows remote attackers to execute JavaScript code in the client's browser and harvest login credentials after a client clicks a link, enters credentials, and submits the login form.

Affected vendor

Get Simple

Affected product

Getsimple Cms

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2020-09-01

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 10.5% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2020-23839

Confirm whether Get Simple Getsimple Cms is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-23839.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-23839

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-23839 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-2020-23839?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2020-23839.

Start free scan

No credit card. Agentless.

Related vulnerabilities

Cached Feed.Cgi Script vulnerability

MEDIUM

CVE-2000-0908

Browsegate vulnerability