Unauthenticated administrative actions via permissive REST callbacks
Published Jan 23, 2026 · Updated Jan 23, 2026
Missing authorization in SumUp Payment Gateway For WooCommerce 2.7.9 and earlier allows remote attackers to invoke administrative REST actions. Three REST route registrations use __return_true as permission_callback, accepting every request instead of requiring manage_options. No credentials or user interaction are required; the official assessment limits demonstrated impact to reduced availability.
Summary
What happened
Missing authorization in SumUp Payment Gateway For WooCommerce 2.7.9 and earlier allows remote attackers to invoke administrative REST actions. Three REST route registrations use __return_true as permission_callback, accepting every request instead of requiring manage_options. No credentials or user interaction are required; the official assessment limits demonstrated impact to reduced availability.
The record
- CVE
- CVE-2026-24583
- Published
- Jan 23, 2026
- Updated
- Jan 23, 2026
- Vendor
- SumUp
- Product
- SumUp Payment Gateway For WooCommerce
- Classifications
- CWE-862, CAPEC-180, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 23, 2026CVE publishedPublication date reported by the CVE source.
- Jan 23, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=n/a <=<= 2.7.9
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- Atomic Edge CVE-2026-24583 proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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