How severe is CVE-2021-34629?

CVE-2021-34629 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-34629 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34629?

CVE-2021-34629 affects Sendgrid. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34629?

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

When was CVE-2021-34629 published?

CVE-2021-34629 was published on 2021-07-30 and last updated on 2026-06-17.

CVE-2021-34629

CVE-2021-34629 is a medium-severity vulnerability in Sendgrid with a CVSS 3.x base score of 4.3. 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Sendgrid
Published: 2021-07-30
Last modified: 2026-06-17

Description

The SendGrid WordPress plugin is vulnerable to authorization bypass via the get_ajax_statistics function found in the ~/lib/class-sendgrid-statistics.php file which allows authenticated users to export statistic for a WordPress multi-site main site, in versions up to and including 1.11.8.

Frequently asked questions

What is CVE-2021-34629?: The SendGrid WordPress plugin is vulnerable to authorization bypass via the get_ajax_statistics function found in the ~/lib/class-sendgrid-statistics.php file which allows authenticated users to export statistic for a WordPress multi-site main site, in versions up to and including 1.11.8.
How severe is CVE-2021-34629?: CVE-2021-34629 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-34629 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34629?: CVE-2021-34629 affects Sendgrid. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34629?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-34629 published?: CVE-2021-34629 was published on 2021-07-30 and last updated on 2026-06-17.

References

https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34629

Affected products (1)

cpe:2.3:a:sendgrid:sendgrid:*:*:*:*:*:wordpress:*:*

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