CVE-2022-37458Network attack vector

Unlimited invitation email sending

Published Sep 2, 2022 · Updated Aug 3, 2024

Rate-limit bypass in Discourse through 2.8.7 allows remote authenticated users to send invitation emails to arbitrary addresses. The invitation system fails to enforce a sending limit in some cases, permitting repeated requests against arbitrary recipient addresses. Administrative access is required; the documented consequence is email spam and resource abuse, with no evidence of account takeover or code execution.

CVSS severity7.2
High
EPSS probability1.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Rate-limit bypass in Discourse through 2.8.7 allows remote authenticated users to send invitation emails to arbitrary addresses. The invitation system fails to enforce a sending limit in some cases, permitting repeated requests against arbitrary recipient addresses. Administrative access is required; the documented consequence is email spam and resource abuse, with no evidence of account takeover or code execution.

The record

CVE
CVE-2022-37458
Published
Sep 2, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 2, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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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