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  4. CVE 2012 20003 custom tables wordpress plugin 346 reflected xss
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Back to active CVEs
Medium · CVSS 5.1CVE-2012-20003

Custom Tables WordPress Plugin < 3.4.6 Reflected XSS via iframe.phpCVE-2012-20003

Answer in brief

CVE-2012-20003 records a Medium severity (CVSS 5.1) vulnerability in Custom Tables WordPress Plugin < 3.4.6 Reflected XSS via iframe.php. The current sources do not mark it as known exploited. The current feed maps Web Updates KMU/Custom Tables (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 20, 2026Updated Oct 20, 2026Source checked Oct 20, 2026First seen by HOL Oct 20, 2026Material review Oct 20, 2026
Upstream Advisory

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 20, 2026
References
6 linked sources
Open source record

Key facts

Risk
Medium · CVSS 5.1
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Web Updates KMU/Custom Tables (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Web Updates KMU/Custom Tablesgeneric>=0 <3.4.63.4.6

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Web Updates KMU/Custom Tables.
  2. 2Review the reported fix. Update Web Updates KMU/Custom Tables to 3.4.6 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 20, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencewordpress.org
  • Source referencewpscan.com
  • Source referenceacunetix.com
  • Source referenceexploit-db.com
  • Source referencevulncheck.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

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  • JavaMelody < 1.60.0 Reflected XSS via monitoring graph parameterAlso CWE-79
  • IBM vulnerable to cross-site scripting (XSS) via unsanitized title truncationAlso CWE-79