CVE-2022-46839Network attack vector

Unauthenticated arbitrary file upload

Published Jan 5, 2024 · Updated Apr 28, 2026

Unrestricted file upload in JoomSky JS Help Desk 2.7.1 and earlier allows remote attackers to place dangerous files on WordPress sites. Patchstack has not disclosed the affected upload handler or the validation operation that accepts attacker-controlled file types. No authentication or user interaction is required, and uploaded backdoors can execute in the site context, exposing site data and control.

CVSS severity10.0
Critical
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in JoomSky JS Help Desk 2.7.1 and earlier allows remote attackers to place dangerous files on WordPress sites. Patchstack has not disclosed the affected upload handler or the validation operation that accepts attacker-controlled file types. No authentication or user interaction is required, and uploaded backdoors can execute in the site context, exposing site data and control.

The record

CVE
CVE-2022-46839
Published
Jan 5, 2024
Updated
Apr 28, 2026
Vendor
JoomSky
Product
JS Help Desk
Classifications
CWE-434, T1105
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=2.7.1 changes=[{"at":"2.7.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JoomSky · JS Help Deskversion=n/a <=2.7.1 changes=[{"at":"2.7.2","status":"unaffected"}]

Published CVSS scores

10.0PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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