CVE-2022-46168Network attack vector

Email-address disclosure via visible CC recipients

Published Jan 5, 2023 · Updated Mar 10, 2025

Email disclosure in Discourse before 2.8.14 and 2.9.0.beta0 through 2.9.0.beta14 allows remote authenticated users to view member email addresses. The group SMTP mailer places non-staged users in the visible CC header instead of masking their addresses in BCC. Group SMTP must be enabled, and a recipient must receive a group message; exposure is limited to other recipients' email addresses.

CVSS severity3.5
Low
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Email disclosure in Discourse before 2.8.14 and 2.9.0.beta0 through 2.9.0.beta14 allows remote authenticated users to view member email addresses. The group SMTP mailer places non-staged users in the visible CC header instead of masking their addresses in BCC. Group SMTP must be enabled, and a recipient must receive a group message; exposure is limited to other recipients' email addresses.

The record

CVE
CVE-2022-46168
Published
Jan 5, 2023
Updated
Mar 10, 2025
Vendor
Discourse
Product
Discourse
Classifications
CWE-359, T1589.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 2.8.14
  2. Affected versionversion=>= 2.9.0.beta0, < 2.9.0.beta15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Discourse · Discourseversion=< 2.8.14; version=>= 2.9.0.beta0, < 2.9.0.beta15

Published CVSS scores

3.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-359Exposure of Private Personal Information to an Unauthorized Actor
T1589.002Gather Victim Identity Information: Email Addresses

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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