How severe is CVE-2009-4801?

CVE-2009-4801 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2009-4801 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4801?

CVE-2009-4801 affects Will Kraft Ez-blog. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-4801?

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-2009-4801 published?

CVE-2009-4801 was published on 2010-04-23 and last updated on 2026-06-16.

CVE-2009-4801

CVE-2009-4801 is a high-severity vulnerability in Will Kraft Ez-blog 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: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Will Kraft Ez-blog
Published: 2010-04-23
Last modified: 2026-06-16

Description

EZ-Blog Beta 1 does not require authentication, which allows remote attackers to create or delete arbitrary posts via requests to PHP scripts.

Frequently asked questions

What is CVE-2009-4801?: EZ-Blog Beta 1 does not require authentication, which allows remote attackers to create or delete arbitrary posts via requests to PHP scripts.
How severe is CVE-2009-4801?: CVE-2009-4801 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2009-4801 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4801?: CVE-2009-4801 affects Will Kraft Ez-blog. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-4801?: 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-2009-4801 published?: CVE-2009-4801 was published on 2010-04-23 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:will_kraft:ez-blog:-:beta1:*:*:*:*:*:*

More vulnerabilities in Will Kraft Ez-blog

CVE-2009-1626 — High (CVSS 7.5): SQL injection vulnerability in public/specific.php in EZ-Blog before Beta 2 20090427, when magic_quotes_gpc is…
CVE-2009-4805 — Medium (CVSS 6.8): Multiple SQL injection vulnerabilities in EZ-Blog Beta 1, when magic_quotes_gpc is disabled, allow remote attackers to…

All CVEs affecting Will Kraft Ez-blog →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →