What is the CVSS score of CVE-2022-42149?

CVE-2022-42149 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.2%.

Is there a public PoC exploit available for CVE-2022-42149?

Yes, a public proof-of-concept exploit is available for CVE-2022-42149. Prioritise patching immediately. EPSS: 2.2%.

Kkfileview CVE-2022-42149

CRITICAL

Server-Side Request Forgery (SSRF) (CWE-918)

2022-10-17 cve@mitre.org

SSRF Kkfileview Keking

9.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-918 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V4 - API and Web Service URL allowlisting, SSRF prevention MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Credential Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could make the server perform requests to unintended internal or external resources by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 2.2% exploitation probability (EPSS)

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AnalysisAI

kkFileView 4.0 is vulnerable to Server-side request forgery (SSRF) via controller\OnlinePreviewController.java. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918), which allows attackers to make the server perform requests to unintended internal or external resources. kkFileView 4.0 is vulnerable to Server-side request forgery (SSRF) via controller\OnlinePreviewController.java. Affected products include: Keking Kkfileview.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

kkFileView 4.0 is vulnerable to Server-side request forgery (SSRF) via controller\OnlinePreviewController.java.

Threat Intelligence Overview

EPSS Score

2.2%

Top 20% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS POC (1)

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 2.2%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +2

CVSS: +49

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Server-Side Request Forgery HIGH

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

Affected Products (CPE)NVD

cpe:2.3:a:keking:kkfileview:4.0.0:*:*:*:*:*:*:*

More in Kkfileview

View all

CVE-2022-43140 HIGH This Week POC

7.5 Nov 17

kkFileView v4.1.0 was discovered to contain a Server-Side Request Forgery (SSRF) via the component cn.keking.web.control

CVE-2022-36593 MEDIUM This Month POC

6.5 Sep 02

kkFileView v4.0.0 was discovered to contain an arbitrary file deletion vulnerability via the fileName parameter at /cont

CVE-2023-48815 MEDIUM This Month POC

6.1 Dec 04

kkFileView v4.3.0 is vulnerable to Incorrect Access Control. Rated medium severity (CVSS 6.1), this vulnerability is rem

CVE-2022-4740 MEDIUM This Month POC

6.1 Dec 25

A vulnerability, which was classified as problematic, has been found in kkFileView. Rated medium severity (CVSS 6.1), th

CVE-2022-40879 MEDIUM This Month POC

6.1 Sep 29

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

CVE-2022-35151 MEDIUM This Month POC

6.1 Aug 17

kkFileView v4.1.0 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities via the urls and current

CVE-2022-29349 MEDIUM This Month POC

6.1 May 25

kkFileView v4.0.0 was discovered to contain a cross-site scripting (XSS) vulnerability via the url parameter at /control

CVE-2026-88592 CRITICAL Act Now

9.1 Sep 16

Server-side request forgery in kkFileView 4.2.0 and later lets remote, unauthenticated attackers make the server fetch a

CVE-2026-95140 HIGH This Week

7.5 Oct 06

Unauthenticated directory traversal in kkFileView 5.0.0 through 5.0.2 lets remote attackers create arbitrary directories

CVE-2022-42147 MEDIUM This Month

6.1 Oct 17

kkFileView 4.0 is vulnerable to Cross Site Scripting (XSS) via controller\ Filecontroller.java. Rated medium severity (C

CVE-2026-124556 LOW Monitor

2.1 Nov 09

Open redirect in kekingcn kkFileView builds up to and including 5.0.3 allows remote attackers to steer users to attacker

CVE-2025-4538 MEDIUM This Month

5.3 May 11

A vulnerability was found in kkFileView 4.4.0. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploita

Same weakness CWE-918 – Server-Side Request Forgery (SSRF)

View all

CVE-2021-34473 CRITICAL POC

9.1

CVE-2021-26855 CRITICAL POC

9.1

CVE-2021-21985 CRITICAL POC

9.8

CVE-2022-41040 HIGH POC

8.8

CVE-2024-21893 HIGH POC

8.2

CVE-2021-40438 CRITICAL POC

9.0

CVE-2021-22054 HIGH POC

7.5

CVE-2021-21975 HIGH POC

7.5

Same technique SSRF

View all

CVE-2016-3718 MEDIUM POC

5.5

References

Advisories & patches

REF https://github.com/xiaojiangxl/paper/blob/main/kkFileView/ssrf_vul_en.md

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GitHub PoC

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