Answer in brief
CVE-2026-75828 records a Critical severity (CVSS 8.7) vulnerability in Grav before 2.0.15 Stored XSS via detectXss() Quote Bypass. The current sources do not mark it as known exploited. The current feed maps getgrav/grav (composer), getgrav/grav (generic), getgrav/grav (packagist). 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 8.7. 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 getgrav/grav (composer), getgrav/grav (generic), getgrav/grav (packagist). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| getgrav/gravcomposer | <=2.0.14 | 2.0.15 |
| getgrav/gravgeneric | >=0 <2.0.15 | 2.0.15 |
| getgrav/gravpackagist | >=0 <2.0.15 | 2.0.15 |
Published upstream
Aug 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 18, 2026
Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the detectXss() function where unpaired quotes in unquoted attribute values bypass event-handler detection. Authenticated editors can inject event handlers like onerror= that pass validation and execute in visitor browsers when page content is rendered.
Quoted source text, attributed separately from HOL analysis.