Medium · CVSS 6.9CVE-2026-66666

WordPress Core <= 7.1.2 - Unauthenticated Sensitive Data Exposure of Comments on Private and Unpublished Posts via Comment Feed vulnerabilityCVE-2026-66666

Answer in brief

CVE-2026-66666 records a Medium severity (CVSS 6.9) vulnerability in WordPress Core <= 7.1.2 - Unauthenticated Sensitive Data Exposure of Comments on Private and Unpublished Posts via Comment Feed vulnerability. The current sources do not mark it as known exploited. The current feed maps Automattic/wordpress (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 Oct 6, 2026Updated Oct 6, 2026Source checked Oct 6, 2026First seen by HOL Oct 6, 2026Material review Oct 6, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.9
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 6.9. 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 Automattic/wordpress (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Automattic/wordpressgeneric	>=7.1 <=7.1.2 \|\| >=7.0 <=7.0.6 \|\| >=6.9 <=6.9.9 \|\| >=6.8 <=6.8.10 \|\| >=6.7 <=6.7.9 \|\| >=6.6 <=6.6.9	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Automattic/wordpress.
Review the reported fix. Source-reported solution: Update the WordPress WordPress wordpress to the latest available version (at least 7.1.3).

Evidence timeline and material changes

Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 6, 2026

Sources and claim methodology

Source referencepatchstack.com

Upstream source description

Insertion of Sensitive Information Into Sent Data vulnerability in Automattic WordPress wordpress allows Retrieve Embedded Sensitive Data.This issue affects WordPress: from n/a through 7.1.2.

Quoted source text, attributed separately from HOL analysis.