How severe is CVE-2023-4281?

CVE-2023-4281 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-2023-4281 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4281?

CVE-2023-4281 affects Activity Log Project Activity Log. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4281?

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

When was CVE-2023-4281 published?

CVE-2023-4281 was published on 2023-09-25 and last updated on 2026-06-17.

CVE-2023-4281

CVE-2023-4281 is a medium-severity vulnerability in Activity Log Project Activity Log 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.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Activity Log Project Activity Log
Published: 2023-09-25
Last modified: 2026-06-17

Description

This Activity Log WordPress plugin before 2.8.8 retrieves client IP addresses from potentially untrusted headers, allowing an attacker to manipulate its value. This may be used to hide the source of malicious traffic.

Frequently asked questions

What is CVE-2023-4281?: This Activity Log WordPress plugin before 2.8.8 retrieves client IP addresses from potentially untrusted headers, allowing an attacker to manipulate its value. This may be used to hide the source of malicious traffic.
How severe is CVE-2023-4281?: CVE-2023-4281 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-2023-4281 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4281?: CVE-2023-4281 affects Activity Log Project Activity Log. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4281?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4281 published?: CVE-2023-4281 was published on 2023-09-25 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/f5ea6c8a-6b07-4263-a1be-dd033f078d49

Affected products (1)

cpe:2.3:a:activity_log_project:activity_log:*:*:*:*:*:wordpress:*:*

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CVE-2022-27858 — High (CVSS 7.4): CSV Injection vulnerability in Activity Log Team Activity Log <= 2.8.3 on WordPress.
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