Wava Payment 0.3.1 - 0.3.9 - Unauthenticated Merchant Credential Overwrite via Install Webhook

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-87838
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-21 06:16:50 UTC
Updated2026-10-21 18:37:38 UTC
DescriptionThe Wava Payment Plugin WordPress plugin before 0.3.10 does not perform any authorisation, nonce or origin verification on one of its public REST endpoints, allowing unauthenticated attackers to overwrite the stored credential that identifies the merchant account the store's payments are created against, to force the integration into a verified state the site owner never completed, and to remove the payment method from the store's checkout.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from ADP

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

EPSS: 0.001430000 probability, percentile 0.032520000 (date 2026-10-21)

Problem Types: CWE-862 | CWE-862 Missing Authorization | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Wava Payment Plugin affected 0.3.1 0.3.10 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/96f247d7-3007-4728-9cd7-0ea52c96edb3 [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Pablo González Pérez (en)

CNA: Francisco José Ramírez Vicente and Iñigo Sánchez Enciso (en)

CNA: WPScan (en)

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