CVE-2024-8367

Notification email content injection via Markdown links

Published Sep 1, 2024 · Updated Sep 3, 2024

Markdown injection in HMCTS Probate Back Office c1afe0cdb2b2766d9e24872c4e827f8b82a6cd31 allows remote authenticated users to alter notification emails. NotificationService sends case-data values as email personalization without rejecting Markdown links, allowing crafted URLs to reach outgoing messages. Adjacent-network access and low application privileges are required; exploitation changes email content without disclosing data or interrupting service.

CVSS severity5.1
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Markdown injection in HMCTS Probate Back Office c1afe0cdb2b2766d9e24872c4e827f8b82a6cd31 allows remote authenticated users to alter notification emails. NotificationService sends case-data values as email personalization without rejecting Markdown links, allowing crafted URLs to reach outgoing messages. Adjacent-network access and low application privileges are required; exploitation changes email content without disclosing data or interrupting service.

The record

CVE
CVE-2024-8367
Published
Sep 1, 2024
Updated
Sep 3, 2024
Vendor
HM Courts & Tribunals Service
Product
Probate Back Office
Classifications
CWE-74, T1566.002
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 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?

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

  1. Affected versionversion=c1afe0cdb2b2766d9e24872c4e827f8b82a6cd31

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

HM Courts & Tribunals Service · Probate Back Officeversion=c1afe0cdb2b2766d9e24872c4e827f8b82a6cd31

Published CVSS scores

3.5VulDBCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
5.1VulDBCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
2.7VulDBAV:A/AC:L/Au:S/C:N/I:P/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1566.002Phishing: Spearphishing Link

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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