CVE-2022-50893Public exploitNetwork attack vector

Unauthenticated code execution via unrestricted image upload

Published Jan 13, 2026 · Updated Jan 13, 2026

Unrestricted file upload in VIAVIWEB Wallpaper Admin 1.0 allows remote attackers to execute arbitrary code through its gallery image endpoint. The add_gallery_image.php handler accepts a .php filename labeled image/png and stores the file beneath the web-accessible categories path. No authentication is required; requesting the uploaded PHP file causes the web server to execute attacker-supplied code with the service process privileges.

CVSS severity9.3
Critical
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Unrestricted file upload in VIAVIWEB Wallpaper Admin 1.0 allows remote attackers to execute arbitrary code through its gallery image endpoint. The add_gallery_image.php handler accepts a .php filename labeled image/png and stores the file beneath the web-accessible categories path. No authentication is required; requesting the uploaded PHP file causes the web server to execute attacker-supplied code with the service process privileges.

The record

CVE
CVE-2022-50893
Published
Jan 13, 2026
Updated
Jan 13, 2026
Vendor
Viavi Webtech
Product
Android Wallpapers App (HD, Full HD, 4K, Ultra HD Wallpapers)
Classifications
CWE-434, T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Viavi Webtech · Android Wallpapers App (HD, Full HD, 4K, Ultra HD Wallpapers)version=1.0

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application
T1505.003Server Software Component: Web Shell

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo