CVE-2026-88783

validatedZero produced an exploit or a check.

GHSA-w96f-q24m-hc95 ↗EUVD-2026-91942 ↗

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.
Kubio AI Page Builder < 2.9.3
fixed in 2.9.3
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
ETK-2026-595, permanent identifier
+1.7dTTV
1h 20mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0hcheck available+41h07magent stopped
0
+12h
+24h
+36h

description

Kubio AI Page Builder for WordPress before 2.9.3 can apply its expanded HTML allowlist to content submitted by unauthenticated users. An attacker may cause browser-executed markup to be stored and later rendered for site visitors or administrators reviewing pending submissions; unauthenticated content submission must be available.

mitigation

Update Kubio AI Page Builder to version 2.9.3 or later. Until updated, disable or restrict unauthenticated content submission to reduce exposure.

fixed in 2.9.3

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.
0.28%18th percentile
agent run time
1h 20m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-03 06:00Z
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. 2026-10-03 06:00Z
    ghsa: trigger signal, started the run
  2. 2026-10-03 06:00Z

this entry in the feed

GET /api/v1/feed/CVE-2026-88783

{
  "etk_id": "ETK-2026-595",
  "cve_id": "CVE-2026-88783",
  "display_id": "CVE-2026-88783",
  "ghsa_id": "GHSA-w96f-q24m-hc95",
  "euvd_id": "EUVD-2026-91942",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stored cross-site scripting in Kubio AI Page Builder",
  "summary": "Kubio AI Page Builder for WordPress before 2.9.3 can apply its expanded HTML allowlist to content submitted by unauthenticated users. An attacker may cause browser-executed markup to be stored and later rendered for site visitors or administrators reviewing pending submissions; unauthenticated content submission must be available.",
  "mitigation": "Update Kubio AI Page Builder to version 2.9.3 or later. Until updated, disable or restrict unauthenticated content submission to reduce exposure.",
  "vendor": null,
  "product": "Kubio AI Page Builder",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 2.9.3"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "2.9.3"
      ],
      "package_name": "Kubio AI Page Builder",
      "purl": null
    }
  ],
  "cwes": [
    79
  ],
  "cvss_score": 8.8,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "epss_score": 0.0028,
  "epss_percentile": 0.1883,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 79.96706446666667,
  "t0_at": "2026-10-03T06:00:26.829000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-04T23:07:00.052824+00:00",
      "days": 1.712884535,
      "is_lower_bound": false,
      "measured_at": "2026-10-03T06:00:26.829000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-03T06:00:26.829000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-03T06:00:26.829000+00:00",
      "url": "https://github.com/advisories/GHSA-w96f-q24m-hc95"
    }
  }
}

published 2026-10-04 21:47Z
last change 2026-10-21 05:00Z

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