CVE-2024-30522Network attack vector

IP blacklist bypass via insufficient client address validation

Published May 17, 2024 · Updated Apr 28, 2026

IP spoofing in Stefano Lissa & The Newsletter Team Newsletter 8.2.0 and earlier allows remote attackers to bypass its IP blacklist. The plugin applies its blacklist to an insufficiently validated client address, allowing a request to be associated with an address different from its network source. No authentication or user interaction is required; the reported consequence is limited to bypassing IP-based blocking.

CVSS severity5.3
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IP spoofing in Stefano Lissa & The Newsletter Team Newsletter 8.2.0 and earlier allows remote attackers to bypass its IP blacklist. The plugin applies its blacklist to an insufficiently validated client address, allowing a request to be associated with an address different from its network source. No authentication or user interaction is required; the reported consequence is limited to bypassing IP-based blocking.

The record

CVE
CVE-2024-30522
Published
May 17, 2024
Updated
Apr 28, 2026
Vendor
Stefano Lissa & The Newsletter Team
Product
Newsletter
Classifications
CWE-290, CAPEC-554, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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=n/a <=8.2.0 changes=[{"at":"8.2.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Stefano Lissa & The Newsletter Team · Newsletterversion=n/a <=8.2.0 changes=[{"at":"8.2.1","status":"unaffected"}]
Stefano Lissa · Newsletterversion=0 <8.2.1

Published CVSS scores

5.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
CAPEC-554Functionality Bypass
T1190Exploit Public-Facing Application

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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