Answer in brief
CVE-2026-23898 records a Unknown severity vulnerability in Joomla! Core - [20260305] - Arbitrary file deletion in com_joomlaupdate. The current sources do not mark it as known exploited. The current feed maps Joomla! Project/Joomla! CMS (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 Joomla! Project/Joomla! CMS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Joomla! Project/Joomla! CMSgeneric | 4.0.0-5.4.3 || 6.0.0-6.0.3 | Not reported |
Published upstream
Apr 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 12, 2026
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-23898 records a Unknown severity vulnerability in Joomla! Core - [20260305] - Arbitrary file deletion in com_joomlaupdate. The current sources do not mark it as known exploited. The current feed maps Joomla! Project/Joomla! CMS (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 Joomla! Project/Joomla! CMS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Joomla! Project/Joomla! CMSgeneric | 4.0.0-5.4.3 || 6.0.0-6.0.3 | Not reported |
Published upstream
Apr 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 12, 2026
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.
Quoted source text, attributed separately from HOL analysis.