CVE-2026-3208Network attack vector

Unauthenticated PIX QR disclosure via missing authorization

Published May 6, 2026 · Updated May 6, 2026

Missing authorization in Mercado Pago payments for WooCommerce 8.7.11 and earlier allows remote attackers to retrieve PIX QR images. The mp_pix_image endpoint obtains an order's QR image without validating the caller's order key or authorization for that order. Exploitation requires an enabled PIX checkout and an identifiable order, and disclosure is limited to QR-encoded payment and merchant data.

CVSS severity5.3
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Mercado Pago payments for WooCommerce 8.7.11 and earlier allows remote attackers to retrieve PIX QR images. The mp_pix_image endpoint obtains an order's QR image without validating the caller's order key or authorization for that order. Exploitation requires an enabled PIX checkout and an identifiable order, and disclosure is limited to QR-encoded payment and merchant data.

The record

CVE
CVE-2026-3208
Published
May 6, 2026
Updated
May 6, 2026
Vendor
Mercado Pago
Product
Mercado Pago payments for WooCommerce
Classifications
CWE-862
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 6, 2026CVE publishedPublication date reported by the CVE source.
  2. May 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=8.7.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mercado Pago · Mercado Pago payments for WooCommerceversion=0 <=8.7.11

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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