CVE-2013-4547

Name: CVE-2013-4547
Creator: NVD / NIST
Published: 2013-11-23T18:55:04.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 67.72%

Last modified Jun 16, 2026

CVE-2013-4547 is a vulnerability of currently unknown severity. nginx 0.8.41 through 1.4.3 and 1.5.x before 1.5.7 allows remote attackers to bypass intended restrictions via an unescaped space character in a URI.. EPSS estimates a 67.72% chance of exploitation in the next 30 days.

Description

nginx 0.8.41 through 1.4.3 and 1.5.x before 1.5.7 allows remote attackers to bypass intended restrictions via an unescaped space character in a URI.

Metrics

EPSS Probability

67.72%

99.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-116

Affected Software

Vendor	Product	Versions
F5	Nginx	>= 0.8.41, < 1.4.4
F5	Nginx	>= 1.5.0, <= 1.5.6
Suse	Lifecycle Management Server	1.3
Suse	Studio Onsite	1.3
Suse	Webyast	1.3
Opensuse	Opensuse	11.4
Opensuse	Opensuse	12.2
Opensuse	Opensuse	12.3
Opensuse	Opensuse	13.1

References

http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00007.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00084.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00118.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00119.htmlMailing List, Third Party Advisory
http://mailman.nginx.org/pipermail/nginx-announce/2013/000125.htmlMitigation, Vendor Advisory
http://secunia.com/advisories/55757Third Party Advisory
http://secunia.com/advisories/55822Third Party Advisory
http://secunia.com/advisories/55825Third Party Advisory
http://www.debian.org/security/2012/dsa-2802Broken Link
http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00007.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00084.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00118.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00119.htmlMailing List, Third Party Advisory
http://mailman.nginx.org/pipermail/nginx-announce/2013/000125.htmlMitigation, Vendor Advisory
http://secunia.com/advisories/55757Third Party Advisory
http://secunia.com/advisories/55822Third Party Advisory
http://secunia.com/advisories/55825Third Party Advisory
http://www.debian.org/security/2012/dsa-2802Broken Link

Timeline

Published: Nov 23, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-4547?

nginx 0.8.41 through 1.4.3 and 1.5.x before 1.5.7 allows remote attackers to bypass intended restrictions via an unescaped space character in a URI.

How severe is CVE-2013-4547?

Severity scoring for CVE-2013-4547 is pending analysis. The EPSS model estimates a 67.72% probability of exploitation in the next 30 days.

How do I fix CVE-2013-4547?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-4547?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST