CVE-2021-34629: The SendGrid WordPress plugin is vulnerable to authorization bypass via the get_ajax_statistics function found

Q: How do I fix CVE-2021-34629?

sendgrid: upgrade to newer than 1.11.8. Exact commands for each OS are on this page.

Q: Is CVE-2021-34629 being exploited?

CVE-2021-34629 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-34629 affect?

CVE-2021-34629 affects sendgrid. Severity is medium (CVSS 4.3). 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 m

Q: How urgent is CVE-2021-34629?

Priority 28/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2021-34629 is a medium-severity flaw (CVSS 4.3) affecting sendgrid. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-862
Published	2021-07-30
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: sendgrid

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-07-30 21:15 UTCPublished CVE record published
2026-06-17 03:56 UTCUpdated Record last modified

sendgrid sendgrid UPGRADE

Affected: <= 1.11.8

Fixed in: newer than 1.11.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy sendgrid || rpm -q sendgrid || sendgrid --version

2. UPGRADE to newer than 1.11.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sendgrid

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sendgrid

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-34629?

sendgrid: upgrade to newer than 1.11.8. Exact commands for each OS are on this page.

Is CVE-2021-34629 being exploited?

CVE-2021-34629 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-34629 affect?

CVE-2021-34629 affects sendgrid. Severity is medium (CVSS 4.3). 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 m

How urgent is CVE-2021-34629?

Priority 28/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities · PHP vulnerabilities

Related CVEs

CVE-2024-9364 MEDIUM 4.3 UPGRADE The SendGrid for WordPress plugin for WordPress is vulnerable to unauthorized loss of data due to a missing ca
CVE-2024-43965 HIGH 8.2 UPGRADE Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Smackcod

References

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