CVE & CISA-KEV Catalog

CVE-2026-84906

MEDIUM
5.3
CVSS v3
NVD

Description

The Eventin WordPress plugin before 4.1.24 does not verify that a completed payment corresponds to the order it is applied to, confirming only that the payment gateway reports the transaction as successful, not its amount, currency, or which order it belongs to, allowing unauthenticated visitors to mark unpaid orders of any value as paid by replaying the transaction of a single genuine low-value payment.

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityNone

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

Exploit Intelligence

EPSS data unavailable for this CVE.

References

Other references1

Related Vulnerabilities

Other CWE-345 vulnerabilities, ordered by exploit likelihood. View all

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CVE-2023-38831High7.898%KEV + RansomFix
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CVE-2016-4554High8.639%-Fix
CVE-2023-35719Medium6.826%--
CVE-2022-26871Critical9.820%KEV-
CVE-2014-4936High9.317%--

Common questions

How do I fix CVE-2026-84906?

No published fix for CVE-2026-84906 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

How severe is CVE-2026-84906?

CVE-2026-84906 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-16.