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CVE-2026-102789

CVE-2026-102789

validatedZero produced an exploit or a check.

EUVD-2026-110644 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
balbooa.com Gridbox extension for Joomla 1.0.0-2.20.4.1
CWE-284 Improper Access Control
ETK-2026-2744Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss9.3cna vendorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
+1h46mTTV
1h 08mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal (cve.org) +0mcheck available+106magent stopped
0
+30min
+60min
+90min

description

Gridbox for Joomla versions before 2.20.4.2 do not enforce the expected edit-level permission for a blog-post retrieval operation. An attacker able to invoke that controller task may access blog-post data without the intended authorization level.

mitigation

Upgrade Gridbox to version 2.20.4.2 or later. Until updated, restrict access to Joomla administration and editor-controller functionality to trusted users.

check
available
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
deterministic
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
1h 08m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-27 09:23Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–

outcome

Check only, differential: the check fires on the vulnerable build and is silent on the patched one.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-10-27 09:23Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-102789

this entry in the feed

GET /api/v1/feed/CVE-2026-102789

{
  "etk_id": "ETK-2026-2744",
  "cve_id": "CVE-2026-102789",
  "display_id": "CVE-2026-102789",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-110644",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authorization bypass in Gridbox editor controller",
  "summary": "Gridbox for Joomla versions before 2.20.4.2 do not enforce the expected edit-level permission for a blog-post retrieval operation. An attacker able to invoke that controller task may access blog-post data without the intended authorization level.",
  "mitigation": "Upgrade Gridbox to version 2.20.4.2 or later. Until updated, restrict access to Joomla administration and editor-controller functionality to trusted users.",
  "vendor": "balbooa.com",
  "product": "Gridbox extension for Joomla",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "1.0.0-2.20.4.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "com_gridbox",
      "purl": null
    }
  ],
  "cwes": [
    284
  ],
  "cvss_score": 9.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 67.90440303333334,
  "t0_at": "2026-10-27T09:23:55.679000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-27T11:09:57.755579+00:00",
      "days": 0.07363514559027778,
      "is_lower_bound": false,
      "measured_at": "2026-10-27T09:23:55.679000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-27T09:23:55.679000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-27T09:23:55.679000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-102789"
    }
  }
}

published 2026-10-27 10:01Z
last change 2026-10-27 11:35Z

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