CVE-2023-43319

CVE-2023-43319 is a medium-severity vulnerability in Icewarp Webclient with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-43319?
CVE-2023-43319 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-43319 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43319?
CVE-2023-43319 affects Icewarp Webclient. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43319?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-43319 published?
CVE-2023-43319 was published on 2023-09-25 and last updated on 2026-06-17.

References

Affected products (1)

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