CVE-2012-20003CWE-79cross-site-scripting

CVE-2012-20003

Medium · published October 21, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
11.3
In the wild
Unconfirmed
What it is

Custom Tables plugin for WordPress before 3.4.6 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject scripts through the unsanitized 'key' parameter in iframe.php. Attackers can craft GET requests to /wp-content/plugins/custom-tables/iframe.php with s=1 and a malicious key value to execute script in victims' browsers and steal cookies. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-20.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
5.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00215 · 11.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-10-21T01:17Z
References (6)
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/wp-custom-tables-xss.yaml · [email protected]https://wordpress.org/plugins/custom-tables/ · [email protected]https://wpscan.com/vulnerability/211a4286-4747-4b62-acc3-fd9a57b06252 · [email protected]https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-custom-tables-key-parameter-cross-site-scripting-3-4-4/ · [email protected]https://www.exploit-db.com/exploits/37482 · [email protected]https://www.vulncheck.com/advisories/custom-tables-wordpress-plugin-3.4.6-reflected-xss-via-iframe-php · [email protected]
EPSS history
Timeline
  • 22 OCT 03:05Z
    EPSS moved — → 0%
    epss
  • 20 OCT 20:31Z
    Custom Tables WordPress Plugin < 3.4.6 Reflected XSS via iframe.php
    cvelistv5
  • 20 OCT 20:31Z
    Custom Tables WordPress Plugin < 3.4.6 Reflected XSS via iframe.php
    cvelistv5