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TI-2026-78575 Aliases CVE-2026-87838GHSA-hqf7-665r-7343

Missing authorization in Wava Payment Plugin for WordPress

Priority LOW 35CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.

Summary

The Wava Payment Plugin WordPress plugin from 0.3.1 before 0.3.10 has a missing authorization flaw (CWE-862) in one of its public REST endpoints, which performs no authorization, nonce or origin checks. An unauthenticated remote attacker can overwrite the stored merchant account credential, force the integration into a verified state the site owner never completed, and remove the payment method from the store's checkout. The references link a public exploit.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00275 20th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Wava Payment Plugin (Unknown): 0.3.10

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownWava Payment Plugin0.3.1 to before 0.3.100.3.10Patch availableCNA
  • Wava Payment Plugin VendorUnknown Affected 0.3.1 to before 0.3.10 Fixed in 0.3.10 Patch available CNA

Remediation

Update the Wava Payment Plugin to version 0.3.10, which fixes the flaw. The sources do not list a vendor advisory for this fix.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Wava Payment Plugin (Unknown) Fixed in 0.3.10

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Wava Payment Plugin 0.3.10

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-78574 Missing authorization in Wava Payment Plugin webhookPriority LOW 30
    Show all 2 records →

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-87838
  2. 2026-10-21 Alias added: GHSA-hqf7-665r-7343

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences