CVE-2026-12684Public exploitNetwork attack vector

Unauthenticated media uploads via unchecked AJAX handler

Published Jul 16, 2026 · Updated Jul 16, 2026

Unrestricted media upload in CusRev Customer Reviews for WooCommerce before 5.113.0 allows remote attackers to exhaust server disk space. The unauthenticated cr_upload_media AJAX handler creates Media Library attachment posts without authentication, capability, or nonce checks while limiting files to allowed image and video types. The review media attachment feature must be enabled; repeated uploads can pollute the Media Library and consume storage but do not enable code execution.

CVSS severity6.5
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted media upload in CusRev Customer Reviews for WooCommerce before 5.113.0 allows remote attackers to exhaust server disk space. The unauthenticated cr_upload_media AJAX handler creates Media Library attachment posts without authentication, capability, or nonce checks while limiting files to allowed image and video types. The review media attachment feature must be enabled; repeated uploads can pollute the Media Library and consume storage but do not enable code execution.

The record

CVE
CVE-2026-12684
Published
Jul 16, 2026
Updated
Jul 16, 2026
Vendor
CusRev
Product
Customer Reviews for WooCommerce
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 16, 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 <5.113.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CusRev · Customer Reviews for WooCommerceversion=0 <5.113.0

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

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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