CVE-2022-50893: VIAVIWEB Wallpaper Admin 1.0 contains an unauthenticated remote code execution vulnerability in the image uplo

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-50893 is a critical-severity flaw (CVSS 9.8) affecting wallpaper admin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

VIAVIWEB Wallpaper Admin 1.0 contains an unauthenticated remote code execution vulnerability in the image upload functionality. Attackers can upload a malicious PHP file through the add_gallery_image.php endpoint to execute arbitrary code on the server.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-434
Published	2026-01-13
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: viaviweb

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-13 23:15 UTCPublished CVE record published
2026-06-17 05:24 UTCUpdated Record last modified

viaviweb wallpaper admin DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy wallpaper-admin || rpm -q wallpaper-admin || wallpaper-admin --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison wallpaper-admin sudo apt install wallpaper-admin=<VERSION_BEFORE_1.0> sudo apt-mark hold wallpaper-admin

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list wallpaper-admin sudo dnf downgrade wallpaper-admin-<VERSION_BEFORE_1.0> sudo dnf versionlock add wallpaper-admin

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · jgmenu · FIXED · 4.7.0-1.fc46 · FEDORA-2026-3053ee4399 · source

sudo dnf upgrade --advisory=FEDORA-2026-3053ee4399

Fedora ELN · python-tkrzw · FIXED · 0.1.32-12.eln159 · FEDORA-2026-0161d71544 · source

sudo dnf upgrade --advisory=FEDORA-2026-0161d71544

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: www.exploit-db.com/exploits/51033

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-50893?

wallpaper admin: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-50893 being exploited?

CVE-2022-50893 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-50893 affect?

CVE-2022-50893 affects wallpaper admin. Severity is critical (CVSS 9.8). VIAVIWEB Wallpaper Admin 1.0 contains an unauthenticated remote code execution vulnerability in the image upload functionality. Attackers can upload a malicious PHP file through the add_gallery_image.php endpoint to execute arbitrary code o

How urgent is CVE-2022-50893?

Priority 63/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2022-50894 MEDIUM 6.5 DOWNGRADE VIAVIWEB Wallpaper Admin 1.0 contains an SQL injection vulnerability that allows authenticated attackers to ma
CVE-2022-50892 HIGH 8.2 DOWNGRADE VIAVIWEB Wallpaper Admin 1.0 contains a SQL injection vulnerability that allows attackers to bypass authentica

References

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