What is CVE-2012-4263?

CVE-2012-4263 is a vulnerability in Bit51 Better-Wp-Security, classified under Cross-site Scripting. Published 2012-08-13.

Is CVE-2012-4263 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Bit51 Better-Wp-Security

CVE-2012-4263

Cross-site scripting (XSS) vulnerability in inc/admin/content.php in the Better WP Security (better_wp_security) plugin before 3.2.5 for WordPress allows remote attackers to inject arbitrary web script or HTML via the HTTP_USER_AGENT header.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2012-08-13 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.021 (80.6th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000

Affected products

Bit51 Better-Wp-Security — versions 0.1, 0.2, 0.3
WordPress

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

plugins.trac.wordpress.org/changeset (Exploit, Patch)
www.securityfocus.com/bid/53480 (vdb-entry)
exchange.xforce.ibmcloud.com/vulnerabilities/75523 (vdb-entry)
packetstormsecurity.org/files/112617/WordPress-Better-WP-Security-Cross-Site-Sc… (Exploit)
bit51.com/software/better-wp-security/changelog/

Frequently asked questions

What is CVE-2012-4263?: CVE-2012-4263 is a vulnerability in Bit51 Better-Wp-Security, classified under Cross-site Scripting. Published 2012-08-13.
Is CVE-2012-4263 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.