CVE•Published 2023-10-30•Modified 2026-04-08•1 article on news•6 live references•NVD data

CVE-2023-5583Maca134 · Wp_simple_galleries

Vulnerability data via NVD (ingested)

CVSS v3.1

8.8

HIGH

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

EPSS percentile

Exploit Prediction Scoring System · top 32% of all CVEs

Weaknesses (CWE)

CWE-502Deserialization of Untrusted Data

Description

The WP Simple Galleries plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 1.34 via deserialization of untrusted input from the 'wpsimplegallery_gallery' post meta via 'wpsgallery' shortcode. This allows authenticated attackers, with contributor-level permissions and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Timeline

Published 2023-10-30

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-2023-5583

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · WP plugin path

http.html:"/wp-content/plugins/wp-simple-galleries/"

Matches any site loading the "wp-simple-galleries" plugin — doesn't rely on Shodan's vuln tag.

Shodan · product

product:"Maca134 Wp Simple Galleries"

All exposed Maca134 Wp Simple Galleries instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Wp Simple Galleries"

HTTP body or banner mentions "Wp Simple Galleries" — catches deploys Shodan didn't identify as a product.