How severe is CVE-2022-4100?

CVE-2022-4100 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2022-4100 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4100?

CVE-2022-4100 affects Wpcerber Cerber Security Antispam & Malware Scan. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-4100?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2022-4100 have an EU (EUVD) identifier?

Yes. CVE-2022-4100 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-51470.

When was CVE-2022-4100 published?

CVE-2022-4100 was published on 2024-08-31 and last updated on 2026-06-17.

CVE-2022-4100

CVE-2022-4100 is a medium-severity vulnerability in Wpcerber Cerber Security Antispam & Malware Scan with a CVSS 3.x base score of 5.3. 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-693.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2022-51470
Weakness: CWE-693
Affected product: Wpcerber Cerber Security Antispam & Malware Scan
Published: 2024-08-31
Last modified: 2026-06-17

Description

The WP Cerber Security plugin for WordPress is vulnerable to IP Protection bypass in versions up to, and including 9.4 due to the plugin improperly checking for a visitor's IP address. This makes it possible for an attacker whose IP address has been blocked to bypass this control by setting the X-Forwarded-For: HTTP header to an IP Address that hasn't been blocked.

Frequently asked questions

What is CVE-2022-4100?: The WP Cerber Security plugin for WordPress is vulnerable to IP Protection bypass in versions up to, and including 9.4 due to the plugin improperly checking for a visitor's IP address. This makes it possible for an attacker whose IP address has been blocked to bypass this control by setting the X-Forwarded-For: HTTP header to an IP Address that hasn't been blocked.
How severe is CVE-2022-4100?: CVE-2022-4100 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2022-4100 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4100?: CVE-2022-4100 affects Wpcerber Cerber Security Antispam & Malware Scan. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-4100?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2022-4100 have an EU (EUVD) identifier?: Yes. CVE-2022-4100 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-51470.
When was CVE-2022-4100 published?: CVE-2022-4100 was published on 2024-08-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wpcerber:cerber_security_antispam_\&_malware_scan:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Wpcerber Cerber Security Antispam & Malware Scan

CVE-2016-10990 — Medium (CVSS 6.1): The wp-cerber plugin before 2.7 for WordPress has XSS via the X-Forwarded-For HTTP header.

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