Answer in brief
CVE-2026-63048 records a Critical severity (CVSS 9.4) vulnerability in Joomla Extension - joomlack.fr - Improper access control in Page Builder CK 1.0.0-3.1.2, 3.4.0-3.4.11, 3.5.0-3.6.2. The current sources do not mark it as known exploited. The current feed maps joomlack.fr/Page Builder CK extension for Joomla (generic), joomlack.fr/Page Builder CK extension for Joomla (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 9.4. 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 joomlack.fr/Page Builder CK extension for Joomla (generic), joomlack.fr/Page Builder CK extension for Joomla (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| joomlack.fr/Page Builder CK extension for Joomlageneric | 1.0.0-3.6.2 | Not reported |
| joomlack.fr/Page Builder CK extension for Joomlageneric | 1.0.0-3.1.2 || 3.4.0-3.4.11 || 3.5.0-3.6.2 | Not reported |
Published upstream
Jul 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 12, 2026
Joomla Extension - joomlack.fr - Improper access control in Page Builder CK 1.0.0-3.1.2, 3.4.0-3.4.11, 3.5.0-3.6.2 - The Joomla extension Page Builder CK is vulnerable to an authenticated arbitrary file upload, leading to RCE.
Quoted source text, attributed separately from HOL analysis.