How severe is CVE-2007-1277?

CVE-2007-1277 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2007-1277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-1277?

CVE-2007-1277 affects Wordpress. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-1277?

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-2007-1277 published?

CVE-2007-1277 was published on 2007-03-05 and last updated on 2026-06-16.

CVE-2007-1277

CVE-2007-1277 is a high-severity vulnerability in Wordpress with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 27% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 27% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Wordpress
Published: 2007-03-05
Last modified: 2026-06-16

Description

WordPress 2.1.1, as downloaded from some official distribution sites during February and March 2007, contains an externally introduced backdoor that allows remote attackers to execute arbitrary commands via (1) an eval injection vulnerability in the ix parameter to wp-includes/feed.php, and (2) an untrusted passthru call in the iz parameter to wp-includes/theme.php.

Frequently asked questions

What is CVE-2007-1277?: WordPress 2.1.1, as downloaded from some official distribution sites during February and March 2007, contains an externally introduced backdoor that allows remote attackers to execute arbitrary commands via (1) an eval injection vulnerability in the ix parameter to wp-includes/feed.php, and (2) an untrusted passthru call in the iz parameter to wp-includes/theme.php.
How severe is CVE-2007-1277?: CVE-2007-1277 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2007-1277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1277?: CVE-2007-1277 affects Wordpress. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-1277?: 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-2007-1277 published?: CVE-2007-1277 was published on 2007-03-05 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:wordpress:wordpress:2.1.1:*:*:*:*:*:*:*

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