Answer in brief
CVE-2026-66683 records a Medium severity (CVSS 5.3) vulnerability in WordPress Custom CSS and JavaScript plugin <= 2.0.16 - Sensitive Data Exposure vulnerability. The current sources do not mark it as known exploited. The current feed maps WP Zone/Custom CSS and JavaScript (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
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.
The current feed maps WP Zone/Custom CSS and JavaScript (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WP Zone/Custom CSS and JavaScriptgeneric | n/a | Not reported |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
Unauthenticated Sensitive Data Exposure in Custom CSS and JavaScript <= 2.0.16 versions.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-66683 records a Medium severity (CVSS 5.3) vulnerability in WordPress Custom CSS and JavaScript plugin <= 2.0.16 - Sensitive Data Exposure vulnerability. The current sources do not mark it as known exploited. The current feed maps WP Zone/Custom CSS and JavaScript (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
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.
The current feed maps WP Zone/Custom CSS and JavaScript (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WP Zone/Custom CSS and JavaScriptgeneric | n/a | Not reported |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
Unauthenticated Sensitive Data Exposure in Custom CSS and JavaScript <= 2.0.16 versions.
Quoted source text, attributed separately from HOL analysis.