CVE-2022-41654Public exploitNetwork attack vector

Newsletter modification via trusted nested object input

Published Dec 23, 2022 · Updated Apr 14, 2025

Improper access control in Ghost 4.46.0 through 4.48.7 and 5.0.0 through 5.22.6 allows remote authenticated users to alter newsletters. The updateMemberData function accepts a caller-supplied newsletters object from /members/api/member/ and passes it to the member update service without restricting nested newsletter fields. A self-registered member account is sufficient on sites with members enabled, the default, enabling newsletter content changes and stored script execution when an administrator edits the newsletter.

CVSS severity9.6
Critical
EPSS probability18.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Ghost 4.46.0 through 4.48.7 and 5.0.0 through 5.22.6 allows remote authenticated users to alter newsletters. The updateMemberData function accepts a caller-supplied newsletters object from /members/api/member/ and passes it to the member update service without restricting nested newsletter fields. A self-registered member account is sufficient on sites with members enabled, the default, enabling newsletter content changes and stored script execution when an administrator edits the newsletter.

The record

CVE
CVE-2022-41654
Published
Dec 23, 2022
Updated
Apr 14, 2025
Vendor
Ghost Foundation
Product
Ghost
Classifications
CWE-284, T1136
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 23, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2025Record 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=5.9.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ghost Foundation · Ghostversion=5.9.4

Published CVSS scores

8.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
9.6Cisco TalosCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1136Create Account

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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