CVE-2026-103382VulnerabilityPublished 28 Oct 2026

The Casso Flow WordPress plugin before 4.2.0 does not properly authenticate incoming bank-transfer payment

Source GCVE Database

Authoritative record:CVE-2026-103382· High

Not known to be exploited : upgrade to 4.2.0 soon.

Data as of 28 Oct 2026, 07:29 UTC

Severity

High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Patch: Available – fixed in 4.2.0

Exploitation evidence

Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-c348-5968-fp8m

What to do

Upgrade Casso Flow (WordPress plugin) to 4.2.0.

Affected software

Product	Affected	Fixed in
Casso Flow	Affected <4.2.0	Fixed in 4.2.0

AI-suggested

Upgrade the Casso Flow WordPress plugin to version 4.2.0 or later where this authentication issue is resolved. No other mitigation details are provided.

Description

The Casso Flow WordPress plugin versions before 4.2.0 have a vulnerability where incoming bank-transfer payment notifications are not properly authenticated. The token used for verification is empty by default, enabling unauthenticated attackers to forge notifications and mark any pending WooCommerce order as paid regardless of the actual payment method.

Impact

An attacker can mark any pending WooCommerce order as paid without making a legitimate payment, potentially leading to unauthorized order fulfillment and financial loss for merchants using the affected plugin versions.

Summary

Casso Flow WordPress plugin versions prior to 4.2.0 fail to properly authenticate bank-transfer payment notifications because the verification token is empty on default installations. This flaw allows attackers to forge payment notifications and manipulate WooCommerce orders to appear paid without legitimate payment, potentially bypassing payment controls.

References

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