CVE-2022-4949: The AdSanity plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation

Q: How do I fix CVE-2022-4949?

adsanity: upgrade to 1.8.2; xen: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2022-4949 being exploited?

CVE-2022-4949 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-4949 affect?

CVE-2022-4949 affects adsanity, xen. Severity is high (CVSS 8.8). The AdSanity plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'ajax_upload' function in versions up to, and including, 1.8.1. This makes it possible for authenticated attackers with Con

Q: How urgent is CVE-2022-4949?

Priority 56/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADEMITIGATE

CVE-2022-4949 is a high-severity flaw (CVSS 8.8) affecting adsanity, xen. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The AdSanity plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'ajax_upload' function in versions up to, and including, 1.8.1. This makes it possible for authenticated attackers with Contributor+ level privileges to upload arbitrary files on the affected sites server which makes remote code execution possible.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.2% (top 18%)
CISA exploited list	No
Weakness	CWE-434
Published	2023-06-07
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: adsanityplugin · xen

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

Am I affected?

Timeline

2023-06-07 02:15 UTCPublished CVE record published
2026-06-17 05:22 UTCUpdated Record last modified

adsanityplugin adsanity UPGRADE

Affected: < 1.8.2

Fixed in: 1.8.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy adsanity || rpm -q adsanity || adsanity --version

2. UPGRADE to 1.8.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade adsanity

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade adsanity

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

xen xen MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2022-4949?

adsanity: upgrade to 1.8.2; xen: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-4949 being exploited?

CVE-2022-4949 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-2022-4949 affect?

CVE-2022-4949 affects adsanity, xen. Severity is high (CVSS 8.8). The AdSanity plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'ajax_upload' function in versions up to, and including, 1.8.1. This makes it possible for authenticated attackers with Con

How urgent is CVE-2022-4949?

Priority 56/100. High severity; Public exploit reference

Software pages

WordPress vulnerabilities · Xen vulnerabilities

References

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