CVE-2026-3124 | wpchill Download Monitor Plugin up to 5.1.7 on WordPress executePayment authorization (EUVD-2026-17052)

VDB-354140 · CVE-2026-3124 · EUVD-2026-17052 WPCHILL DOWNLOAD MONITOR PLUGIN UP TO 5.1.7 ON WORDPRESS EXECUTEPAYMENT AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.3 $0-$5k 3.52+ Summaryinfo A vulnerability labeled as critical has been found in wpchill Download Monitor Plugin up to 5.1.7 on WordPress. The affected element is the function executePayment. Such manipulation leads to authorization. This vulnerability is referenced as CVE-2026-3124. It is possible to launch the attack remotely. No exploit is available. Detailsinfo A vulnerability was found in wpchill Download Monitor Plugin up to 5.1.7 on WordPress. It has been rated as critical. Affected by this issue is the function executePayment. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality, integrity, and availability. CVE summarizes: The Download Monitor plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.7 via the executePayment() function due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to complete arbitrary pending orders by exploiting a mismatch between the PayPal transaction token and the local order, allowing theft of paid digital goods by paying a minimal amount for a low-cost item and using that payment token to finalize a high-value order. The weakness was published by Hung Nguyen. The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-3124 since 02/24/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/30/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-17052). Productinfo Type WordPress Plugin Vendor wpchill Name Download Monitor Plugin Version 5.1.0 5.1.1 5.1.2 5.1.3 5.1.4 5.1.5 5.1.6 5.1.7 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: Authorization CWE: CWE-639 / CWE-285 / CWE-266 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 02/24/2026 CVE reserved 03/30/2026 +33 days Advisory disclosed 03/30/2026 +0 days VulDB entry created 03/30/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Hung Nguyen Status: Not defined CVE: CVE-2026-3124 (🔒) GCVE (CVE): GCVE-0-2026-3124 GCVE (VulDB): GCVE-100-354140 EUVD: 🔒 Entryinfo Created: 03/30/2026 07:31 Updated: 03/30/2026 09:09 Changes: 03/30/2026 07:31 (64), 03/30/2026 09:09 (1) Complete: 🔍 Cache ID: 99:D27:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸