CVE•Published 2023-05-30•Modified 2026-10-24•1 article on news•6 live references•NVD data

CVE-2023-2288Themeisle · Otter

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 3% of all CVEs

Weaknesses (CWE)

CWE-502Deserialization of Untrusted Data

Description

The Otter WordPress plugin before 2.2.6 does not sanitize some user-controlled file paths before performing file operations on them. This leads to a PHAR deserialization vulnerability on PHP < 8.0 using the phar:// stream wrapper.

Timeline

Published 2023-05-30

Modified 2026-10-24

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-2023-2288

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · WP plugin path

http.html:"/wp-content/plugins/otter/"

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

Shodan · product

product:"Themeisle Otter"

All exposed Themeisle Otter instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Otter"

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