Answer in brief
CVE-2026-121870 records a Unknown severity vulnerability in Simpler Checkout < 1.5.4 - Subscriber+ Privilege Escalation via Forged Auto-Login Token. The current sources do not mark it as known exploited. The current feed maps Unknown/Simpler Checkout (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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.
The current feed maps Unknown/Simpler Checkout (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Unknown/Simpler Checkoutgeneric | >=0 <1.5.4 | 1.5.4 |
Published upstream
Nov 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 11, 2026
The Simpler Checkout WordPress plugin before 1.5.4 does not properly restrict who can create orders and checks its automatic login link with a key that stays empty until the store owner configures the Simpler Checkout WordPress plugin before 1.5.4, allowing subscribers on stores that have not completed setup to log in as an administrator.
Quoted source text, attributed separately from HOL analysis.