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Back to active CVEs
Critical · CVSS 9.5CVE-2026-78069

Joomla Extension - j2commerce.com - Missing authorization on Apps controller delegation chain in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6CVE-2026-78069

Answer in brief

CVE-2026-78069 records a Critical severity (CVSS 9.5) vulnerability in Joomla Extension - j2commerce.com - Missing authorization on Apps controller delegation chain in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6. The current sources do not mark it as known exploited. The current feed maps j2commerce.com/J2Store 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.

Published Sep 3, 2026Updated Sep 3, 2026Source checked Oct 18, 2026First seen by HOL Sep 3, 2026Material review Sep 3, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.5
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 9.5. 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 j2commerce.com/J2Store extension for Joomla (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
j2commerce.com/J2Store extension for Joomlageneric1.0.0-3.3.21 || 4.0.0-4.0.21 || 4.1.0-4.1.6Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for j2commerce.com/J2Store extension for Joomla.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 3, 2026

Sources and claim methodology

  • Source referencej2commerce.com
Upstream source description

Joomla Extension - j2commerce.com - Missing authorization on Apps controller delegation chain in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `J2StoreControllerApps`'s `appTask` delegation path instantiates app-plugin controllers with no ACL check anywhere in the code. It currently returns 403 only as a side effect of `fof.xml`'s wildcard-deny resolving under the singularised ACL key `app`, which has no explicit allow rule — not because of any deliberate check. Behind that path, `applocalizationdata::getInstallerTool()` used a caller-influenced table name with no allow-list, both to select a `#__j2store_*` table for truncation and to build a path to SQL files it then executes — a path-traversal-capable file read/execute.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • dyad-sh dyad OAuth Callback cross-site request forgeryAlso CWE-862
  • @fastify/jwt vulnerable to missing token expiration when per-call options drop global defaultsSame generic ecosystem
  • AUTOMATIC1111 stable-diffusion-webui Card Builder ui_extra_networks.py create_item_html cross site scriptingSame generic ecosystem
  • AUTOMATIC1111 stable-diffusion-webui Metadata Extraction sd_models.py read_metadata_from_safetensors allocation of resourcesSame generic ecosystem
  • AUTOMATIC1111 stable-diffusion-webui Model Instantiation sd_models.py get_obj_from_str code injectionSame generic ecosystem
  • AUTOMATIC1111 stable-diffusion-webui Extra-Networks Card Builder sd_models.py read_metadata_from_safetensors cross site scriptingSame generic ecosystem

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-862
Source
CVE List V5
Source checked
Oct 18, 2026
References
1 linked source
Open source record