What is CVE-2013-5739?

CVE-2013-5739 is a vulnerability in WordPress, classified under Cross-site Scripting. Published 2013-09-12.

Is CVE-2013-5739 known to be exploited?

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

XSS in WordPress

CVE-2013-5739

The default configuration of WordPress before 3.6.1 does not prevent uploads of .swf and .exe files, which might make it easier for remote authenticated users to conduct cross-site scripting (XSS) attacks via a crafted file, related to the get_allowed_mime_types function in wp-includes/functions.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2013-09-12 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 3.5 (Low). Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.018 (77.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

WordPress

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

www.debian.org/security/2013/dsa-2757 (vendor-advisory)
core.trac.wordpress.org/changeset/25322 (Exploit, Patch)
codex.wordpress.org/Version_3.6.1 (Vendor Advisory)
wordpress.org/news/2013/09/wordpress-3-6-1/ (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2013-5739?: CVE-2013-5739 is a vulnerability in WordPress, classified under Cross-site Scripting. Published 2013-09-12.
Is CVE-2013-5739 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.