CVE-2008-1930
The cookie authentication method in WordPress 2.5 relies on a hash of a concatenated string containing USERNAME and EXPIRY_TIME, which allows remote attackers to forge cookies by registering a username that results in the same concatenated string, as demonstrated by registering usernames beginning with "admin" to obtain administrator privileges, aka a "cryptographic splicing" issue. NOTE: this vulnerability exists because of an incomplete fix for CVE-2007-6013.
Key facts
- CVSS score
- 7.5 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-287
- EPSS score
- 5.1% (92th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2008-1930)
- Published
- April 28, 2008
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2008-1930 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- wordpress / wordpress
References
- http://secunia.com/advisories/29965
- http://wordpress.org/development/2008/04/wordpress-251/(Patch)
- http://www.cl.cam.ac.uk/users/sjm217/advisories/wordpress-cookie-integrity.txt
- http://www.securityfocus.com/archive/1/491356/100/0/threaded
- http://www.securityfocus.com/bid/28935(Patch)
- http://www.securitytracker.com/id?1019923
- http://www.vupen.com/english/advisories/2008/1372/references
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42027
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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