How severe is CVE-2023-5559?

CVE-2023-5559 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2023-5559 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5559?

CVE-2023-5559 affects 10web 10web Booster. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5559?

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-2023-5559 published?

CVE-2023-5559 was published on 2023-11-27 and last updated on 2026-06-17.

CVE-2023-5559

CVE-2023-5559 is a critical-severity vulnerability in 10web 10web Booster with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: 10web 10web Booster
Published: 2023-11-27
Last modified: 2026-06-17

Description

The 10Web Booster WordPress plugin before 2.24.18 does not validate the option name given to some AJAX actions, allowing unauthenticated users to delete arbitrary options from the database, leading to denial of service.

Frequently asked questions

What is CVE-2023-5559?: The 10Web Booster WordPress plugin before 2.24.18 does not validate the option name given to some AJAX actions, allowing unauthenticated users to delete arbitrary options from the database, leading to denial of service.
How severe is CVE-2023-5559?: CVE-2023-5559 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2023-5559 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5559?: CVE-2023-5559 affects 10web 10web Booster. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5559?: 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-2023-5559 published?: CVE-2023-5559 was published on 2023-11-27 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/eba46f7d-e4db-400c-8032-015f21087bbf

Affected products (1)

cpe:2.3:a:10web:10web_booster:*:*:*:*:*:wordpress:*:*

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