Download Monitor <= 5.1.7 — Insecure Direct Object Reference to Unauthenticated Arbitrary Order Completion via 'token' and 'order_id'
CVE-2026-3124Published · Updated Action summary
Affected: ≤5.1.7Update to 5.1.8 or newer
All remediation steps- Severity
- High7.5
- CVSS
- 7.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:HIntegrity- High
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Download Monitor download-monitor
- Affected≤ 5.1.7
- Patched in5.1.8
Update to 5.1.8 or newer.
You are affected if you run ≤ 5.1.7. Version 5.1.8 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Download Monitor.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 5.1.8, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Download Monitor to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to bashu.
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Download Monitor
All 34| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Low2.7 | Missing Authorization <5.3.5Update to 5.3.5 | CVE-2026-112219 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤5.3.3Update to 5.3.4 | CVE-2026-112207 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤5.3.3Update to 5.3.4 | CVE-2026-110375 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor ≤5.2.10Update to 5.2.11 | CVE-2026-100182 | |
| Medium5.3 | Missing Authorization ≤5.2.5Update to 5.2.6 | CVE-2026-16608 |
- Low2.7Missing Authorization
<5.3.5Update to 5.3.5
- Medium6.1Reflected Cross-Site Scripting
≤5.3.3Update to 5.3.4
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤5.3.3Update to 5.3.4
- High7.2Unauthenticated Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor
≤5.2.10Update to 5.2.11
- Medium5.3Missing Authorization
≤5.2.5Update to 5.2.6
Timeline
CVE published
Severity high, CVSS 7.5
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.