CVE-2024-34821Network attack vector

Unauthenticated notice dismissal via missing capability check

Published Jun 11, 2024 · Updated Apr 28, 2026

Missing authorization in Tammersoft Contact List 2.9.87 and earlier allows remote attackers to dismiss administrative notices. The process_notifications() function accepts notice-dismissal requests without checking the caller’s WordPress capability, then records the notice as dismissed. No account or user interaction is required; the demonstrated consequence is limited to changing the plugin’s administrative-notice state.

CVSS severity5.3
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Tammersoft Contact List 2.9.87 and earlier allows remote attackers to dismiss administrative notices. The process_notifications() function accepts notice-dismissal requests without checking the caller’s WordPress capability, then records the notice as dismissed. No account or user interaction is required; the demonstrated consequence is limited to changing the plugin’s administrative-notice state.

The record

CVE
CVE-2024-34821
Published
Jun 11, 2024
Updated
Apr 28, 2026
Vendor
Tammersoft
Product
Contact List – Online Staff Directory & Address Book
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 11, 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=0 <=2.9.87
  2. Affected versionversion=0 <=2.9.87 changes=[{"at":"2.9.88","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tammersoft · Contact List – Online Staff Directory & Address Bookversion=0 <=2.9.87; version=0 <=2.9.87 changes=[{"at":"2.9.88","status":"unaffected"}]

Published CVSS scores

5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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-862Missing Authorization
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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