CVE-2023-5098

CVE-2023-5098 is a high-severity vulnerability in Fatcatapps Campaign Monitor Optin Cat with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The Campaign Monitor Forms by Optin Cat WordPress plugin before 2.5.6 does not prevent users with low privileges (like subscribers) from overwriting any options on a site with the string "true", which could lead to a variety of outcomes, including DoS.

Frequently asked questions

What is CVE-2023-5098?
The Campaign Monitor Forms by Optin Cat WordPress plugin before 2.5.6 does not prevent users with low privileges (like subscribers) from overwriting any options on a site with the string "true", which could lead to a variety of outcomes, including DoS.
How severe is CVE-2023-5098?
CVE-2023-5098 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2023-5098 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5098?
CVE-2023-5098 affects Fatcatapps Campaign Monitor Optin Cat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5098?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-5098 published?
CVE-2023-5098 was published on 2023-10-31 and last updated on 2026-06-17.

References

Affected products (1)