How severe is CVE-2020-36709?

CVE-2020-36709 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-36709 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36709?

CVE-2020-36709 affects King-theme Page Builder Kingcomposer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36709?

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

When was CVE-2020-36709 published?

CVE-2020-36709 was published on 2023-06-07 and last updated on 2026-06-17.

CVE-2020-36709

CVE-2020-36709 is a medium-severity vulnerability in King-theme Page Builder Kingcomposer with a CVSS 3.x base score of 5.5. 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 5.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: King-theme Page Builder Kingcomposer
Published: 2023-06-07
Last modified: 2026-06-17

Description

The Page Builder: KingComposer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via via shortcode in versions before 2.9.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Frequently asked questions

What is CVE-2020-36709?: The Page Builder: KingComposer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via via shortcode in versions before 2.9.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
How severe is CVE-2020-36709?: CVE-2020-36709 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-36709 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36709?: CVE-2020-36709 affects King-theme Page Builder Kingcomposer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36709?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-36709 published?: CVE-2020-36709 was published on 2023-06-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:king-theme:page_builder_kingcomposer:*:*:*:*:*:wordpress:*:*

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