CVE-2007-6013

Name: CVE-2007-6013
Creator: NVD / NIST
Published: 2007-11-19T21:46:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.28%

Last modified Jun 16, 2026

CVE-2007-6013 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Wordpress 1.5 through 2.3.1 uses cookie values based on the MD5 hash of a password MD5 hash, which allows attackers to bypass authentication by obtaining the MD5 hash from the user database, then generating the authentication cookie from that hash.. EPSS estimates a 3.28% chance of exploitation in the next 30 days.

Description

Wordpress 1.5 through 2.3.1 uses cookie values based on the MD5 hash of a password MD5 hash, which allows attackers to bypass authentication by obtaining the MD5 hash from the user database, then generating the authentication cookie from that hash.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.28%

86.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-327

Affected Software

Vendor	Product	Versions
Wordpress	Wordpress	>= 1.5, <= 2.3.1
Fedoraproject	Fedora	7
Fedoraproject	Fedora	8

References

http://lists.grok.org.uk/pipermail/full-disclosure/2007-November/058576.htmlBroken Link
http://osvdb.org/40801Broken Link
http://secunia.com/advisories/27714Broken Link, Vendor Advisory
http://secunia.com/advisories/28310Broken Link, Vendor Advisory
http://securityreason.com/securityalert/3375Broken Link
http://trac.wordpress.org/ticket/5367Exploit, Issue Tracking
http://www.cl.cam.ac.uk/~sjm217/advisories/wordpress-cookie-auth.txtThird Party Advisory
http://www.securityfocus.com/archive/1/483927/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1018980Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2007/3941Broken Link, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/38578Third Party Advisory, VDB Entry
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00079.htmlMailing List
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00098.htmlMailing List
http://lists.grok.org.uk/pipermail/full-disclosure/2007-November/058576.htmlBroken Link
http://osvdb.org/40801Broken Link
http://secunia.com/advisories/27714Broken Link, Vendor Advisory
http://secunia.com/advisories/28310Broken Link, Vendor Advisory
http://securityreason.com/securityalert/3375Broken Link
http://trac.wordpress.org/ticket/5367Exploit, Issue Tracking
http://www.cl.cam.ac.uk/~sjm217/advisories/wordpress-cookie-auth.txtThird Party Advisory
http://www.securityfocus.com/archive/1/483927/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1018980Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2007/3941Broken Link, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/38578Third Party Advisory, VDB Entry
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00079.htmlMailing List
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00098.htmlMailing List

Timeline

Published: Nov 19, 2007
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2007-6013?

How severe is CVE-2007-6013?

CVE-2007-6013 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.28% probability of exploitation in the next 30 days.

How do I fix CVE-2007-6013?

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-2007-6013?

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

Scan your code now

Source: NVD / NIST