Custom Tables Plugin up to 3.4.5 iframe.php key cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k1.37+

Summaryinfo

A vulnerability marked as problematic has been reported in Custom Tables Plugin up to 3.4.5. Impacted is an unknown function of the file iframe.php. Performing a manipulation of the argument key results in cross site scripting. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is identified as CVE-2012-20003. The attack can be initiated remotely. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Custom Tables Plugin up to 3.4.5. This affects an unknown code of the file iframe.php. The manipulation of the argument key with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE 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 advisory is shared at exploit-db.com. This vulnerability is uniquely identified as CVE-2012-20003 since 10/14/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a exploit are known. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:iframe.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 3.4.6 eliminates this vulnerability.

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Productinfo

Name

Version

Support

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (VulnCheck): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Custom Tables Plugin 3.4.6

Timelineinfo

10/14/2026 CVE reserved
10/20/2026 +6 days Advisory disclosed
10/20/2026 +0 days VulDB entry created
10/20/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: exploit-db.com
Status: Confirmed

CVE: CVE-2012-20003 (🔒)
GCVE (CVE): GCVE-0-2012-20003
GCVE (VulDB): GCVE-100-423021
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/20/2026 23:03
Changes: 10/20/2026 23:03 (79)
Complete: 🔍
Cache ID: 216::103

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