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CVE-2026-93754

payever – WooCommerce Gateway <= 4.8.0 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execution

Products / packages payever Checkout – Composable Payment Gateway

Published

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Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 21:20:32 UTC
Wordfence · CVSS:3.1 · 9.8
Assessment vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity

critical9.8

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

The payever – WooCommerce Gateway plugin for WordPress, versions up to 4.8.0, has an arbitrary file upload weakness. An unauthenticated attacker may upload files to the public uploads directory. The impact is uncertain.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

payever · Wordfence

payever Checkout – Composable Payment Gateway

1 range
Wordfence version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 4.8.0

semver versions

unaffected

unknown

Other versions: unaffected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

The payever – WooCommerce Gateway plugin for WordPress is vulnerable to arbitrary file upload leading to remote code execution in various versions up to, and including, 4.8.0. Three WooCommerce-API callbacks (payever_set_sandbox_api_keys, payever_toggle_subscription, payever_synchronization_incoming) are registered with no authentication, capability check, or nonce, and the upload_image() routine writes a remotely fetched file to the public uploads directory using an attacker-controlled basename() BEFORE validating the file type. This makes it possible for unauthenticated attackers to write an executable PHP file and achieve remote code execution. NOTE: the token-recovery leg of the full chain depends on the plugin's outbound validateToken() call to Payever's service; the unauthenticated hard-coded-credential identity overwrite (CWE-862/CWE-798) is independently exploitable.

References

13 sources
www.wordfence.com/threat-intel/vulnerabilities/id/03412063-d73a-4c5c-8dc6-3e76a5d975a5
Security advisoryWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/class-payever-synchronization.php
Source referenceWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/class-payever-synchronization.php
Source referenceWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/woocommerce-payever-gateway.php
Source referenceWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/logger/class-payever-logger.php
Source referenceWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/class-payever-log-manager.php
Source referenceWordfence
View 7 more references
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/synchronization/management/class-payever-subscription-manager.php
Source referenceWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/class-payever-synchronization.php
Source referenceWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/synchronization/management/class-payever-import-manager.php
Source referenceWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/synchronization/actions/class-payever-action-update-product.php
Source referenceWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/includes/synchronization/actions/class-payever-action-update-product.php
Source referenceWordfence
plugins.trac.wordpress.org/browser/payever-woocommerce-gateway/trunk/vendor/payever/core-sdk-php/lib/Payever/Core/Http/Client/CurlClient.php
Source referenceWordfence
plugins.trac.wordpress.org/changeset
PatchWordfence

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-93754

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-434 ↗

CWE-434 Unrestricted Upload of File with Dangerous Type

Wordfence

Related →
Contributing organizations · 2
Wordfence

Assigning organization

2026-11-07
CISA-ADP

Additional data publisher

2026-11-08

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Source updated

    Latest modification date supplied by the source.

  3. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2026-93754

    Observed 2026-11-08T19:23:26.099Z · upstream updated 2026-11-08T19:05:25.752Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-08T18:48:39.952813Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "yes"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.