CVE-2022-39195

Listserv vulnerability

CVSS

6.1

EPSS

6.3%

EPSS pct

93th

Exploited

No known

A cross-site scripting (XSS) vulnerability in the LISTSERV 17 web interface allows remote attackers to inject arbitrary JavaScript or HTML via the c parameter.

Affected vendor

Lsoft

Affected product

Listserv

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

2023-01-17

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 6.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2022-39195

Confirm whether Lsoft Listserv is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2022-39195.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-39195

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-39195 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-2022-39195?

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