How severe is CVE-2023-5843?

CVE-2023-5843 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-5843 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5843?

CVE-2023-5843 affects Datafeedr Ads By Datafeedr.com. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5843?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-5843 published?

CVE-2023-5843 was published on 2023-10-30 and last updated on 2026-06-17.

CVE-2023-5843

CVE-2023-5843 is a critical-severity vulnerability in Datafeedr Ads By Datafeedr.com with a CVSS 3.x base score of 9.0. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Datafeedr Ads By Datafeedr.com
Published: 2023-10-30
Last modified: 2026-06-17

Description

The Ads by datafeedr.com plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 1.1.3 via the 'dfads_ajax_load_ads' function. This allows unauthenticated attackers to execute code on the server. The parameters of the callable function are limited, they cannot be specified arbitrarily.

Frequently asked questions

What is CVE-2023-5843?: The Ads by datafeedr.com plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 1.1.3 via the 'dfads_ajax_load_ads' function. This allows unauthenticated attackers to execute code on the server. The parameters of the callable function are limited, they cannot be specified arbitrarily.
How severe is CVE-2023-5843?: CVE-2023-5843 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-5843 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5843?: CVE-2023-5843 affects Datafeedr Ads By Datafeedr.com. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5843?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-5843 published?: CVE-2023-5843 was published on 2023-10-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:datafeedr:ads_by_datafeedr.com:*:*:*:*:*:wordpress:*:*

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