What is CVE-2023-43319?

CVE-2023-43319 is a medium-severity vulnerability in Icewarp Webclient, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-09-25.

How severe is CVE-2023-43319?

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

Is CVE-2023-43319 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Icewarp Webclient

CVE-2023-43319

Cross Site Scripting (XSS) vulnerability in the Sign-In page of IceWarp WebClient 10.3.5 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the username parameter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (35.2th percentile) — read the EPSS interpretation.

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.

Affected products

Icewarp Webclient — versions 10.3.5
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org

Frequently asked questions

What is CVE-2023-43319?: CVE-2023-43319 is a medium-severity vulnerability in Icewarp Webclient, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-09-25.
How severe is CVE-2023-43319?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-43319 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.