CVE•Published 2022-11-29•Modified 2026-04-08•1 article on news•6 live references•NVD data

CVE-2022-3383Ultimatemember · Ultimate_member

Vulnerability data via NVD (ingested)

CVSS v3.1

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 3% of all CVEs

Weaknesses (CWE)

CWE-94Improper Control of Generation of Code ('Code Injection')

Description

The Ultimate Member plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 2.5.0 via the get_option_value_from_callback function that accepts user supplied input and passes it through call_user_func(). This makes it possible for authenticated attackers, with administrative capabilities, to execute code on the server.

Timeline

Published 2022-11-29

Modified 2026-04-08

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2022-3383

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · WP plugin path

http.html:"/wp-content/plugins/ultimate-member/"

Matches any site loading the "ultimate-member" plugin — doesn't rely on Shodan's vuln tag.

Shodan · product

product:"Ultimatemember Ultimate Member"

All exposed Ultimatemember Ultimate Member instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Ultimate Member"

HTTP body or banner mentions "Ultimate Member" — catches deploys Shodan didn't identify as a product.