How severe is CVE-2021-20746?

CVE-2021-20746 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-20746 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20746?

CVE-2021-20746 affects Wordpress Popular Posts Project Wordpress Popular Posts. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-20746?

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

When was CVE-2021-20746 published?

CVE-2021-20746 was published on 2021-06-28 and last updated on 2026-06-17.

CVE-2021-20746

CVE-2021-20746 is a medium-severity vulnerability in Wordpress Popular Posts Project Wordpress Popular Posts with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Wordpress Popular Posts Project Wordpress Popular Posts
Published: 2021-06-28
Last modified: 2026-06-17

Description

Cross-site scripting vulnerability in WordPress Popular Posts 5.3.2 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

Frequently asked questions

What is CVE-2021-20746?: Cross-site scripting vulnerability in WordPress Popular Posts 5.3.2 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.
How severe is CVE-2021-20746?: CVE-2021-20746 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-20746 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20746?: CVE-2021-20746 affects Wordpress Popular Posts Project Wordpress Popular Posts. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20746?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20746 published?: CVE-2021-20746 was published on 2021-06-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wordpress_popular_posts_project:wordpress_popular_posts:*:*:*:*:*:wordpress:*:*

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