CVE-2013-4547

critical

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.

References

Advisories
More

http://secunia.com/advisories/55825

http://secunia.com/advisories/55822

http://secunia.com/advisories/55757

http://lists.opensuse.org/opensuse-updates/2013-11/msg00119.html

http://lists.opensuse.org/opensuse-updates/2013-11/msg00118.html

http://lists.opensuse.org/opensuse-updates/2013-11/msg00084.html

http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00007.html

https://github.com/CyberCTF/vulhub-nginx-cve-2013-4547

https://github.com/rsp243/fix_nginx_CVE-2013-4547_IB

https://github.com/addisonburkett/cve_query_module

https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-4406

http://www.debian.org/security/2012/dsa-2802

http://mailman.nginx.org/pipermail/nginx-announce/2013/000125.html

Details

Source: Mitre, NVD

Published: 2013-11-23

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

EPSS

EPSS: 0.67718