CVE-2023-30478Network attack vector

Unauthorized actions via missing nonce validation

Published Nov 10, 2023 · Updated Apr 28, 2026

Cross-site request forgery in Tribulant Software Newsletters 4.8.8 and earlier allows remote attackers to manipulate forms and groups. The admin_groups() and admin_forms() functions process state-changing requests without validating a WordPress nonce. Exploitation requires inducing a logged-in site administrator to submit a forged request, and the documented consequence is limited to manipulating newsletter forms and groups.

CVSS severity8.8
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Tribulant Software Newsletters 4.8.8 and earlier allows remote attackers to manipulate forms and groups. The admin_groups() and admin_forms() functions process state-changing requests without validating a WordPress nonce. Exploitation requires inducing a logged-in site administrator to submit a forged request, and the documented consequence is limited to manipulating newsletter forms and groups.

The record

CVE
CVE-2023-30478
Published
Nov 10, 2023
Updated
Apr 28, 2026
Vendor
Tribulant Software
Product
Newsletters
Classifications
CWE-352, CAPEC-62
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 10, 2023CVE 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 <=4.8.8 changes=[{"at":"4.8.9","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tribulant Software · Newslettersversion=n/a <=4.8.8 changes=[{"at":"4.8.9","status":"unaffected"}]

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
5.4WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery

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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