TI-2023-23189 Aliases CVE-2023-43319 GHSA-w9qq-22xf-87fm

Cross Site Scripting (XSS) vulnerability in the Sign-In page of IceWarp WebClient 10.3.5…

MEDIUM 60CWE-79Published 2023-09-25 · Updated 2024-09-24

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00503 43rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:icewarp:webclient:10.3.5:::::::*	10.3.5	Vulnerable	IceWarp

cpe:2.3:a:icewarp:webclient:10.3.5:*:*:*:*:*:*:* Versions 10.3.5 Vulnerable ·IceWarp

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-43319
2026-10-03 Alias added: GHSA-w9qq-22xf-87fm

References

Other 1

https://medium.com/%40muthumohanprasath.r/reflected-cross-site-scripting-on-icewarp-webclient-product-cve-2023-43319-c2ad758ac2bc

TI-2023-20694 Cross Site Scripting vulnerability in IceWarp Corporation WebClient v.10.2.1 allows a… CVSS 3.1MEDIUM 6.1
TI-2010-05032 IceWarp Webclient before 10.2.1 has a directory traversal vulnerability. CVSS 3.1HIGH 7.5
TI-2010-05031 IceWarp Webclient before 10.2.1 has a directory traversal vulnerability. CVSS 3.1HIGH 7.5
TI-2020-15876 Cross Site Scripting (XSS) in Webmail Calender in IceWarp WebClient 10.3.5 allows remote… CVSS 3.1MEDIUM 6.1
TI-2010-05037 IceWarp Webclient before 10.2.1 has XSS via an HTTP POST request: webmail/ with the… CVSS 3.1MEDIUM 6.1
TI-2010-05036 IceWarp Webclient before 10.2.1 has XSS via an HTTP POST request: webmail/basic/ with the… CVSS 3.1MEDIUM 6.1

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences