CVE-2026-81813

validatedZero produced an exploit or a check.

GHSA-grh6-fqc7-f8f5 ↗EUVD-2026-107083 ↗

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.
Elementor Website Builder < 4.3.5
fixed in 4.3.5
ETK-2026-2296Zero's internal tracking ID, independent of the CVE number., permanent identifier
+1h35mTTV
20mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0mcheck available+95magent stopped
0
+30min
+60min

description

Elementor Website Builder versions before 4.3.5 insufficiently sanitize text content in uploaded SVG files. An authenticated user with the Contributor role or higher can cause browser-side script execution when an affected SVG is displayed inline to a visitor using a Chromium-based browser; Firefox is not affected.

mitigation

Update Elementor Website Builder to version 4.3.5 or later. Until updated, restrict SVG upload and editing permissions for Contributor-level and other untrusted accounts, and avoid rendering their SVG files inline.

fixed in 4.3.5

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.
–
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
20m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-21 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. 2026-10-21 06:00Z
    ghsa: trigger signal, started the run
  2. 2026-10-21 06:00Z

this entry in the feed

GET /api/v1/feed/CVE-2026-81813

{
  "etk_id": "ETK-2026-2296",
  "cve_id": "CVE-2026-81813",
  "display_id": "CVE-2026-81813",
  "ghsa_id": "GHSA-grh6-fqc7-f8f5",
  "euvd_id": "EUVD-2026-107083",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stored cross-site scripting in Elementor Website Builder SVG handling",
  "summary": "Elementor Website Builder versions before 4.3.5 insufficiently sanitize text content in uploaded SVG files. An authenticated user with the Contributor role or higher can cause browser-side script execution when an affected SVG is displayed inline to a visitor using a Chromium-based browser; Firefox is not affected.",
  "mitigation": "Update Elementor Website Builder to version 4.3.5 or later. Until updated, restrict SVG upload and editing permissions for Contributor-level and other untrusted accounts, and avoid rendering their SVG files inline.",
  "vendor": null,
  "product": "Elementor Website Builder",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 4.3.5"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "4.3.5"
      ],
      "package_name": "Elementor Website Builder",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": null,
  "cvss_src": null,
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 19.725801816666667,
  "t0_at": "2026-10-21T06:00:24.425000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-21T07:35:14.765833+00:00",
      "days": 0.06586042630787037,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T06:00:24.425000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-21T06:00:24.425000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T06:00:24.425000+00:00",
      "url": "https://github.com/advisories/GHSA-grh6-fqc7-f8f5"
    }
  }
}

published 2026-10-21 07:15Z
last change 2026-10-21 09:11Z

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