CVE-2026-27344Public exploitNetwork attack vector

Unauthenticated unauthorized action via missing capability check

Published Mar 5, 2026 · Updated Mar 5, 2026

Missing authorization in inseri.swiss inseri core 1.0.5 and earlier allows remote attackers to perform an unauthorized action. An unnamed plugin function omits a WordPress capability check before executing the action; public records do not identify the function or action. No authentication or user interaction is required over the network, but the resulting action and its affected data remain undisclosed.

CVSS severity5.9
Medium
EPSS probability0.24%
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 inseri.swiss inseri core 1.0.5 and earlier allows remote attackers to perform an unauthorized action. An unnamed plugin function omits a WordPress capability check before executing the action; public records do not identify the function or action. No authentication or user interaction is required over the network, but the resulting action and its affected data remain undisclosed.

The record

CVE
CVE-2026-27344
Published
Mar 5, 2026
Updated
Mar 5, 2026
Vendor
inseri.swiss
Product
inseri core
Classifications
CWE-862, CAPEC-180, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=<= 1.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

inseri.swiss · inseri coreversion=n/a <=<= 1.0.5

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.9PatchstackCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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 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 exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1190Exploit Public-Facing Application

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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