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Vulnerability record · CVE-2012-3578 · published 17 June 2012

CVE-2012-3578: Wordpress fcchat widget permissions and access controls vulnerability

Wordpress · Fcchat Widget

Unrestricted file upload vulnerability in html/Upload.php in the FCChat Widget plugin 2.2.13.1 and earlier for WordPress allows remote attackers to execute arbitrary code by uploading a file with a file with an executable extension followed by a safe extension, then accessing it via a direct request to the file in html/images.

6.8 CVSS 2.0 Medium EPSS 8.4% · top 5.2% CWE-264 · Permissions and access controls
6.8CVSS 2.0 base score
8.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 6 tagged exploit
16 Jun 2026Last modified by NVD

Description

Unrestricted file upload vulnerability in html/Upload.php in the FCChat Widget plugin 2.2.13.1 and earlier for WordPress allows remote attackers to execute arbitrary code by uploading a file with a file with an executable extension followed by a safe extension, then accessing it via a direct request to the file in html/images.

AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.org/files/113323/WordPress-FCChat-Widget-2.x-Shell-Upload.html Exploit
http://secunia.com/advisories/49419 Vendor Advisory
http://www.opensyscom.fr/Actualites/wordpress-plugins-fcchat-widget-shell-upload-vulnerability.html Exploit
http://www.securityfocus.com/bid/53855 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/76123
http://packetstormsecurity.org/files/113323/WordPress-FCChat-Widget-2.x-Shell-Upload.html Exploit
http://secunia.com/advisories/49419 Vendor Advisory
http://www.opensyscom.fr/Actualites/wordpress-plugins-fcchat-widget-shell-upload-vulnerability.html Exploit
http://www.securityfocus.com/bid/53855 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/76123

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Source: NIST National Vulnerability Database (record CVE-2012-3578), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.