CVE-2013-5738 — The get_allowed_mime_types function in wp-includes/functions.php in WordPress before 3.6.1 does not require the unfiltered_html capability for uploads of .htm and .html files, which might make it easier for remote authenticated users to conduct cross-site scripting (XSS) attacks via a crafted file

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MEDIUM

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

Published Sep 12, 2013

4.3

MEDIUM

CVSS 2.0

EPSS 2.36%

Description

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

Affected products

Remediation

No remediation recorded yet.

Metrics

2.36% 0.02361

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.02361

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (14 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 2, 2026	2.36% (0.02361)	83.17th	v5 (v2026.06.15)
Jun 15, 2026	2.36% (0.02361)	81.51th	v5 (v2026.06.15)
Mar 30, 2025	0.71% (0.00715)	70.03th	v4 (v2025.03.14)
Mar 29, 2025	11.18% (0.11183)	89.13th	v4 (v2025.03.14)
Mar 24, 2025	0.71% (0.00715)	70.02th	v4 (v2025.03.14)
Mar 23, 2025	2.38% (0.02376)	81.96th	v4 (v2025.03.14)
Mar 17, 2025	0.71% (0.00715)	70.67th	v4 (v2025.03.14)
Dec 12, 2024	0.24% (0.00236)	62.58th	v3 (v2023.03.01)
Jun 14, 2024	0.24% (0.00236)	61.86th	v3 (v2023.03.01)
Mar 7, 2023	0.24% (0.00236)	59.85th	v3 (v2023.03.01)
Mar 6, 2023	1.21% (0.01213)	66.61th	v2 (v2022.01.01)
Feb 17, 2023	1.21% (0.01213)	66.22th	v2 (v2022.01.01)
Apr 1, 2022	1.21% (0.01213)	64.21th	v2 (v2022.01.01)
Feb 4, 2022	1.21% (0.01213)	40.54th	v2 (v2022.01.01)

Weaknesses (1)

CWE-20

Improper Input Validation

References (4)

http://codex.wordpress.org/Version_3.6.1
x_refsource_CONFIRMVendor Advisory
http://core.trac.wordpress.org/changeset/25322
x_refsource_CONFIRMPatchVendor Advisory
http://wordpress.org/news/2013/09/wordpress-3-6-1/
x_refsource_CONFIRMPatchVendor Advisory
http://www.debian.org/security/2013/dsa-2757
vendor-advisoryx_refsource_DEBIAN

Link	Providers	Tags
http://codex.wordpress.org/Version_3.6.1		x_refsource_CONFIRMVendor Advisory
http://core.trac.wordpress.org/changeset/25322		x_refsource_CONFIRMPatchVendor Advisory
http://wordpress.org/news/2013/09/wordpress-3-6-1/		x_refsource_CONFIRMPatchVendor Advisory
http://www.debian.org/security/2013/dsa-2757		vendor-advisoryx_refsource_DEBIAN

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Sep 12, 2013

Updated Aug 6, 2024

Reserved Sep 11, 2013

Link CVE-2013-5738

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2013-5738

Red Hat

Severity n/a

Public date n/a

Links CVE-2013-5738