CVE-2025-49998Network attack vector

Authenticated integration disconnection via unchecked AJAX logout

Published Jun 20, 2025 · Updated Apr 28, 2026

Missing authorization in Wetail WooCommerce Fortnox Integration 4.5.5 and earlier allows remote authenticated users to log out Fortnox. The fortnox_logout AJAX handler accepts a logout request without verifying that the caller has the required administrative capability. Subscriber-level access is sufficient to disconnect the store's Fortnox integration, interrupting synchronized accounting and inventory operations.

CVSS severity5.4
Medium
EPSS probability0.28%
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 Wetail WooCommerce Fortnox Integration 4.5.5 and earlier allows remote authenticated users to log out Fortnox. The fortnox_logout AJAX handler accepts a logout request without verifying that the caller has the required administrative capability. Subscriber-level access is sufficient to disconnect the store's Fortnox integration, interrupting synchronized accounting and inventory operations.

The record

CVE
CVE-2025-49998
Published
Jun 20, 2025
Updated
Apr 28, 2026
Vendor
Wetail AB
Product
WooCommerce Fortnox Integration
Classifications
CWE-862, CAPEC-180, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 20, 2025CVE 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 <=4.5.5 changes=[{"at":"4.5.6","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Wetail AB · WooCommerce Fortnox Integrationversion=0 <=4.5.5 changes=[{"at":"4.5.6","status":"unaffected"}]

Published CVSS scores

5.4PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1531Account Access Removal

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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