How severe is CVE-2022-40879?

CVE-2022-40879 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-2022-40879 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40879?

CVE-2022-40879 affects Keking Kkfileview. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40879?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-40879 published?

CVE-2022-40879 was published on 2022-09-29 and last updated on 2026-06-17.

CVE-2022-40879

CVE-2022-40879 is a medium-severity vulnerability in Keking Kkfileview 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

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Keking Kkfileview
Published: 2022-09-29
Last modified: 2026-06-17

Description

kkFileView v4.1.0 is vulnerable to Cross Site Scripting (XSS) via the parameter 'errorMsg.'

Frequently asked questions

What is CVE-2022-40879?: kkFileView v4.1.0 is vulnerable to Cross Site Scripting (XSS) via the parameter 'errorMsg.'
How severe is CVE-2022-40879?: CVE-2022-40879 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-2022-40879 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40879?: CVE-2022-40879 affects Keking Kkfileview. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40879?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-40879 published?: CVE-2022-40879 was published on 2022-09-29 and last updated on 2026-06-17.

References

https://github.com/kekingcn/kkFileView/issues/389

Affected products (1)

cpe:2.3:a:keking:kkfileview:4.1.0:*:*:*:*:*:*:*

More vulnerabilities in Keking Kkfileview

CVE-2022-42149 — Critical (CVSS 9.8): kkFileView 4.0 is vulnerable to Server-side request forgery (SSRF) via controller\OnlinePreviewController.java.
CVE-2022-43140 — High (CVSS 7.5): kkFileView v4.1.0 was discovered to contain a Server-Side Request Forgery (SSRF) via the component…
CVE-2021-43734 — High (CVSS 7.5): kkFileview v4.0.0 has arbitrary file read through a directory traversal vulnerability which may lead to sensitive file…
CVE-2022-36593 — Medium (CVSS 6.5): kkFileView v4.0.0 was discovered to contain an arbitrary file deletion vulnerability via the fileName parameter at…
CVE-2025-4538 — Medium (CVSS 6.3): A vulnerability was found in kkFileView 4.4.0. It has been classified as critical. This affects an unknown part of the…
CVE-2023-48815 — Medium (CVSS 6.1): kkFileView v4.3.0 is vulnerable to Incorrect Access Control.

All CVEs affecting Keking Kkfileview →

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