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Medium 6.5Published Oct 21, 2026

CVE-2026-87838Wava Payment 0.3.1 - 0.3.9 - Unauthenticated Merchant Credential Overwrite via Install Webhook

Updated under an hour ago ()

Does this affect you?

It affects Unknown Wava Payment Plugin. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE)
CWE-862
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
WPScan
NVD analysis
Deferred
Record last updated
Oct 21, 2026
First seen by InfoSec Signals
Oct 21, 2026

Affected products

Affected products
Unknown Wava Payment Plugin
unknown:wava_payment_plugin (from the name)
from 0.3.1 before 0.3.10
CNA record

References

  • exploit, vdb-entry, technical-description

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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