Is CVE-2021-24278 in the CISA KEV catalog?

No. CVE-2021-24278 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-24278?

CVE-2021-24278 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-24278?

CVE-2021-24278 has an EPSS score of 7.36% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-24278?

Upgrade redirection for contact form 7 to 2.3.4 or later.

CVE & CISA-KEV Catalog

CVE-2021-24278

HIGHEPSS 94th pctl

7.5

CVSS v3

NVD

Description

In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, unauthenticated users can use the wpcf7r_get_nonce AJAX action to retrieve a valid nonce for any WordPress action/function.

CWE-863Incorrect Authorization

How to fix

Remediation Available

redirection for contact form 7NVD

Affected:< 2.3.4Fixed in:2.3.4CVE-2021-24278derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

7.36%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Exploit2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.