How severe is CVE-2008-1930?

CVE-2008-1930 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2008-1930 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1930?

CVE-2008-1930 affects Wordpress. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-1930?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-1930 published?

CVE-2008-1930 was published on 2008-04-28 and last updated on 2026-06-16.

CVE-2008-1930

CVE-2008-1930 is a high-severity vulnerability in Wordpress with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Wordpress
Published: 2008-04-28
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2008-1930?: CVE-2008-1930 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2008-1930 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1930?: CVE-2008-1930 affects Wordpress. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-1930?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2008-1930 published?: CVE-2008-1930 was published on 2008-04-28 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:wordpress:wordpress:2.5:*:*:*:*:*:*:*

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