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Back to active CVEs
Medium · CVSS 5.3CVE-2026-121633

Order Tracking < 3.6.0 - Unauthenticated Payment Confirmation Forgery via PayPal IPN ListenerCVE-2026-121633

Answer in brief

CVE-2026-121633 records a Medium severity (CVSS 5.3) vulnerability in Order Tracking < 3.6.0 - Unauthenticated Payment Confirmation Forgery via PayPal IPN Listener. The current sources do not mark it as known exploited. The current feed maps Unknown/Order Tracking (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 6, 2026Updated Nov 6, 2026Source checked Nov 6, 2026First seen by HOL Nov 6, 2026Material review Nov 6, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/Order Tracking (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Unknown/Order Trackinggeneric>=0 <3.6.03.6.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/Order Tracking.
  2. 2Review the reported fix. Update Unknown/Order Tracking to 3.6.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 6, 2026

Sources and claim methodology

  • Source referencewpscan.com
Upstream source description

The Order Tracking WordPress plugin before 3.6.0 does not verify that a PayPal payment notification was sent to the merchant's account, or that its amount matches the order total, before marking an order as paid, which could allow unauthenticated attackers to mark arbitrary orders as paid using a trivial payment to their own PayPal account.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Quick Event Manager 9.9.5 - 9.18 - Unauthenticated PayPal IPN Verification Bypass via the 'debug' ParameterAlso CWE-345

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-345
Source
CVE List V5
Source checked
Nov 6, 2026
References
1 linked source
Open source record