CVE-2026-5050 | jconti Payment Gateway for Redsys & WooCommerce Lite Plugin successful_request signature verification

VDB-357886 · CVE-2026-5050 · GCVE-0-2026-5050 JCONTI PAYMENT GATEWAY FOR REDSYS & WOOCOMMERCE LITE PLUGIN SUCCESSFUL_REQUEST SIGNATURE VERIFICATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.3 $0-$5k 1.58+ Summaryinfo A vulnerability was found in jconti Payment Gateway for Redsys & WooCommerce Lite Plugin up to 7.0.0 on WordPress and classified as critical. Affected by this issue is the function successful_request. Executing a manipulation can lead to signature verification. This vulnerability is handled as CVE-2026-5050. The attack can be executed remotely. There is not any exploit available. Detailsinfo A vulnerability classified as critical was found in jconti Payment Gateway for Redsys & WooCommerce Lite Plugin up to 7.0.0 on WordPress. This vulnerability affects the function successful_request. The manipulation with an unknown input leads to a signature verification vulnerability. The CWE definition for the vulnerability is CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes: The Payment Gateway for Redsys & WooCommerce Lite plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in versions up to, and including, 7.0.0 due to successful_request() handlers calculating a local signature but not validating Ds_Signature from the request before accepting payment status across the Redsys, Bizum, and Google Pay gateway flows. This makes it possible for unauthenticated attackers to forge payment callback data and mark pending orders as paid when they know a valid order key and order amount, potentially allowing checkout completion and product or service fulfillment without a successful payment. The weakness was released by Nguyen Ngoc Duc. The advisory is available at wordfence.com. This vulnerability was named CVE-2026-5050 since 03/27/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/16/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type E-Commerce Management Software Vendor jconti Name Payment Gateway for Redsys & WooCommerce Lite Plugin Version 7.0 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.4 VulDB Meta Temp Score: 7.3 VulDB Base Score: 7.3 VulDB Temp Score: 7.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.5 CNA Vector (Wordfence): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Signature verification CWE: CWE-347 / CWE-345 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/27/2026 CVE reserved 04/16/2026 +19 days Advisory disclosed 04/16/2026 +0 days VulDB entry created 04/16/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Nguyen Ngoc Duc Status: Not defined CVE: CVE-2026-5050 (🔒) GCVE (CVE): GCVE-0-2026-5050 GCVE (VulDB): GCVE-100-357886 Entryinfo Created: 04/16/2026 09:03 Changes: 04/16/2026 09:03 (64) Complete: 🔍 Cache ID: 99:9A2:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸