CVE-2023-45834Network attack vector

Sensitive information exposure to unauthorized actors

Published Nov 30, 2023 · Updated Apr 28, 2026

Exposure of Sensitive Information to an Unauthorized Actor in Libsyn Publisher Hub through 1.4.4 allows remote attackers to read sensitive data. Public records do not identify a specific plugin function, endpoint, or unsafe operation responsible for the disclosure. The attack requires no authentication or user interaction and is bounded to confidentiality impact; integrity and availability effects are not reported.

CVSS severity5.3
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Exposure of Sensitive Information to an Unauthorized Actor in Libsyn Publisher Hub through 1.4.4 allows remote attackers to read sensitive data. Public records do not identify a specific plugin function, endpoint, or unsafe operation responsible for the disclosure. The attack requires no authentication or user interaction and is bounded to confidentiality impact; integrity and availability effects are not reported.

The record

CVE
CVE-2023-45834
Published
Nov 30, 2023
Updated
Apr 28, 2026
Vendor
Libsyn
Product
Libsyn Publisher Hub
Classifications
CWE-200
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 30, 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 <=1.4.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Libsyn · Libsyn Publisher Hubversion=n/a <=1.4.4

Published CVSS scores

5.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3NVDCVSS:3.1/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

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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