CVE-2021-34629Public exploitNetwork attack vector

Statistics disclosure via unchecked AJAX authorization

Published Jul 30, 2021 · Updated Sep 16, 2024

Authorization bypass in the SendGrid WordPress plugin 1.11.8 and earlier allows remote authenticated users to read email statistics. The get_ajax_statistics AJAX handler validates a nonce but performs no role or capability check before querying and returning SendGrid statistics. A Subscriber account on the main site of a network-activated WordPress Multisite installation can retrieve the administrator-only statistics.

CVSS severity4.3
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in the SendGrid WordPress plugin 1.11.8 and earlier allows remote authenticated users to read email statistics. The get_ajax_statistics AJAX handler validates a nonce but performs no role or capability check before querying and returning SendGrid statistics. A Subscriber account on the main site of a network-activated WordPress Multisite installation can retrieve the administrator-only statistics.

The record

CVE
CVE-2021-34629
Published
Jul 30, 2021
Updated
Sep 16, 2024
Vendor
SendGrid
Product
SendGrid
Classifications
CWE-862, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.11.8 <=1.11.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SendGrid · SendGridversion=1.11.8 <=1.11.8

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1213Data from Information Repositories

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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