CVE-2024-5755Public exploitNetwork attack vector

Duplicate account creation via dotted email aliases

Published Jun 27, 2024 · Updated Aug 1, 2024

Email validation bypass in Lunary 1.2.11 and earlier allows remote attackers to create multiple accounts tied to one Gmail mailbox. The account-registration email check treats dotted Gmail aliases as distinct addresses instead of normalizing them before synchronization. Unauthenticated network access to registration is sufficient; duplicate identities can desynchronize account data, with no published code-execution impact.

CVSS severity5.3
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Email validation bypass in Lunary 1.2.11 and earlier allows remote attackers to create multiple accounts tied to one Gmail mailbox. The account-registration email check treats dotted Gmail aliases as distinct addresses instead of normalizing them before synchronization. Unauthenticated network access to registration is sufficient; duplicate identities can desynchronize account data, with no published code-execution impact.

The record

CVE
CVE-2024-5755
Published
Jun 27, 2024
Updated
Aug 1, 2024
Vendor
Lunary
Product
Lunary
Classifications
CWE-821, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=0 <=1.2.11
  2. Affected versionversion=unspecified <=latest

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lunary · Lunaryversion=0 <=1.2.11; version=unspecified <=latest

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3huntr.devCVSS:3.0/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-821Incorrect Synchronization
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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