How severe is CVE-2021-36869?

CVE-2021-36869 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-2021-36869 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36869?

CVE-2021-36869 affects Ivorysearch Ivory Search. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36869?

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

When was CVE-2021-36869 published?

CVE-2021-36869 was published on 2021-10-21 and last updated on 2026-06-17.

CVE-2021-36869

CVE-2021-36869 is a medium-severity vulnerability in Ivorysearch Ivory Search 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: 4.3
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ivorysearch Ivory Search
Published: 2021-10-21
Last modified: 2026-06-17

Description

Reflected Cross-Site Scripting (XSS) vulnerability in WordPress Ivory Search plugin (versions <= 4.6.6). Vulnerable parameter: &post.

Frequently asked questions

What is CVE-2021-36869?: Reflected Cross-Site Scripting (XSS) vulnerability in WordPress Ivory Search plugin (versions <= 4.6.6). Vulnerable parameter: &post.
How severe is CVE-2021-36869?: CVE-2021-36869 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-2021-36869 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36869?: CVE-2021-36869 affects Ivorysearch Ivory Search. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36869?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36869 published?: CVE-2021-36869 was published on 2021-10-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ivorysearch:ivory_search:*:*:*:*:*:wordpress:*:*

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