How severe is CVE-2021-36866?

CVE-2021-36866 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-36866 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36866?

CVE-2021-36866 affects Fatcatapps Easy Pricing Tables. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36866?

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

When was CVE-2021-36866 published?

CVE-2021-36866 was published on 2022-06-02 and last updated on 2026-06-17.

CVE-2021-36866

CVE-2021-36866 is a medium-severity vulnerability in Fatcatapps Easy Pricing Tables with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Fatcatapps Easy Pricing Tables
Published: 2022-06-02
Last modified: 2026-06-17

Description

Authenticated (author or higher role) Stored Cross-Site Scripting (XSS) vulnerability in Fatcat Apps Easy Pricing Tables plugin <= 3.1.2 at WordPress.

Frequently asked questions

What is CVE-2021-36866?: Authenticated (author or higher role) Stored Cross-Site Scripting (XSS) vulnerability in Fatcat Apps Easy Pricing Tables plugin <= 3.1.2 at WordPress.
How severe is CVE-2021-36866?: CVE-2021-36866 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-36866 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36866?: CVE-2021-36866 affects Fatcatapps Easy Pricing Tables. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36866?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36866 published?: CVE-2021-36866 was published on 2022-06-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:fatcatapps:easy_pricing_tables:*:*:*:*:*:wordpress:*:*

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