How severe is CVE-2021-34665?

CVE-2021-34665 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-34665 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34665?

CVE-2021-34665 affects Wp Seo Tags Project Wp Seo Tags. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34665?

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

When was CVE-2021-34665 published?

CVE-2021-34665 was published on 2021-08-16 and last updated on 2026-06-17.

CVE-2021-34665

CVE-2021-34665 is a medium-severity vulnerability in Wp Seo Tags Project Wp Seo Tags with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Wp Seo Tags Project Wp Seo Tags
Published: 2021-08-16
Last modified: 2026-06-17

Description

The WP SEO Tags WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the saq_txt_the_filter parameter in the ~/wp-seo-tags.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.2.7.

Frequently asked questions

What is CVE-2021-34665?: The WP SEO Tags WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the saq_txt_the_filter parameter in the ~/wp-seo-tags.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.2.7.
How severe is CVE-2021-34665?: CVE-2021-34665 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-34665 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34665?: CVE-2021-34665 affects Wp Seo Tags Project Wp Seo Tags. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34665?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-34665 published?: CVE-2021-34665 was published on 2021-08-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wp_seo_tags_project:wp_seo_tags:*:*:*:*:*:wordpress:*:*

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