CVE-2026-88996

validatedZero produced an exploit or a check.

GHSA-8j5g-9vmv-9mmw ↗EUVD-2026-86590 ↗

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).+3.3dkevAttacks confirmed in the real world.0d
smub WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More <= 2.0.2
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
ETK-2026-53, permanent identifier
+4.7dTTV
30mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal −0.3dcve.org publicationkev+0dpublic poc+3.3dcheck available+4.7dagent stopped
+1d
+2d
+3d
+4d
+5d

description

smub WPForms AI Form Builder versions through 2.0.2 are affected by reflected cross-site scripting. An unauthenticated attacker may cause browser-side script execution when a user interacts with attacker-controlled content and an administrator has placed the page-title smart tag in an HTML attribute within a form confirmation.

mitigation

Remove the page-title smart tag from HTML attributes in form confirmation messages and review existing forms for that pattern. Upgrade to a release newer than 2.0.2 when the vendor provides one; the evidence does not identify the first fixed version.

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.
0.27%18th percentile
agent run time
30m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-09-25 07:40Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+3.3d
Δ to kevAttacks confirmed in the real world.
0d

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. 2026-09-25
    vulncheck_kev: trigger signal, started the run
  2. 2026-09-25 00:00Z
  3. 2026-09-25 07:40Z
  4. 2026-10-01 20:37Z

this entry in the feed

GET /api/v1/feed/CVE-2026-88996

{
  "etk_id": "ETK-2026-53",
  "cve_id": "CVE-2026-88996",
  "display_id": "CVE-2026-88996",
  "ghsa_id": "GHSA-8j5g-9vmv-9mmw",
  "euvd_id": "EUVD-2026-86590",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Reflected cross-site scripting in smub WPForms AI Form Builder",
  "summary": "smub WPForms AI Form Builder versions through 2.0.2 are affected by reflected cross-site scripting. An unauthenticated attacker may cause browser-side script execution when a user interacts with attacker-controlled content and an administrator has placed the page-title smart tag in an HTML attribute within a form confirmation.",
  "mitigation": "Remove the page-title smart tag from HTML attributes in form confirmation messages and review existing forms for that pattern. Upgrade to a release newer than 2.0.2 when the vendor provides one; the evidence does not identify the first fixed version.",
  "vendor": "smub",
  "product": "WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 2.0.2"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More",
      "purl": null
    }
  ],
  "cwes": [
    79
  ],
  "cvss_score": 6.1,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "epss_score": 0.0027,
  "epss_percentile": 0.1858,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 30.434976716666668,
  "t0_at": "2026-09-25T07:40:24.474000+00:00",
  "signals": {
    "check": {
      "at": "2026-09-30T01:16:44.991900+00:00",
      "days": 4.7335708090277775,
      "is_lower_bound": false,
      "measured_at": "2026-09-25T07:40:24.474000+00:00",
      "url": null
    },
    "kev": {
      "at": "2026-09-25T00:00:00+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-25T07:40:24.474000+00:00",
      "precision": "day",
      "url": "https://vulncheck.com/cve/CVE-2026-88996"
    },
    "public_poc": {
      "at": "2026-09-28T15:32:12+00:00",
      "days": 3.327633402777778,
      "is_lower_bound": false,
      "measured_at": "2026-09-25T07:40:24.474000+00:00",
      "url": "https://github.com/dorkerdevil/wpforms-xss-fix-bypass"
    },
    "trigger_signal": {
      "at": "2026-09-25T00:00:00+00:00",
      "days": -0.31972770833333336,
      "is_lower_bound": false,
      "measured_at": "2026-09-25T07:40:24.474000+00:00",
      "url": "https://vulncheck.com/cve/CVE-2026-88996"
    }
  }
}

published 2026-09-30 00:46Z
last change 2026-10-21 04:45Z

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