CVE-2026-75903

validatedZero produced an exploit or a check.

GHSA-cpp4-39xq-w89m ↗EUVD-2026-102815 ↗

check availableZero validated a working check for it.proven exploitableZero has validated a full working exploit.
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.
manuelgalan Vulnity Security <= 1.4.3
CWE-287 Improper Authentication
ETK-2026-1773Zero's internal tracking ID, independent of the CVE number., permanent identifier
+5h29mTTV
1h 07mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0hcheck + exploit+5h29m
0
+2h
+4h
+6h

description

Vulnity Security for WordPress versions through 1.4.3 are affected on Nginx deployments. An unauthenticated attacker may obtain delegated-login credentials and use them to gain administrator access when the plugin-generated server configuration protects the wrong path.

mitigation

Disable the plugin's delegated-login feature or prevent web access to its pairing-credential file at the correct filesystem location in Nginx. Restrict access to affected sites until a vendor-fixed release is available.

check
available
exploit
yes
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.
0.50%41st percentile
agent run time
1h 07m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-16 07:44Z
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

Differential: the exploit fired on the vulnerable build and stayed silent on the patched one.

source signals

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

  1. 2026-10-16 07:44Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-75903

{
  "etk_id": "ETK-2026-1773",
  "cve_id": "CVE-2026-75903",
  "display_id": "CVE-2026-75903",
  "ghsa_id": "GHSA-cpp4-39xq-w89m",
  "euvd_id": "EUVD-2026-102815",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authentication bypass in Vulnity Security for WordPress",
  "summary": "Vulnity Security for WordPress versions through 1.4.3 are affected on Nginx deployments. An unauthenticated attacker may obtain delegated-login credentials and use them to gain administrator access when the plugin-generated server configuration protects the wrong path.",
  "mitigation": "Disable the plugin's delegated-login feature or prevent web access to its pairing-credential file at the correct filesystem location in Nginx. Restrict access to affected sites until a vendor-fixed release is available.",
  "vendor": "manuelgalan",
  "product": "Vulnity Security",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 1.4.3"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Vulnity Security",
      "purl": null
    }
  ],
  "cwes": [
    287
  ],
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.005,
  "epss_percentile": 0.4182,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": true,
  "pipeline_minutes": 66.67692488333333,
  "t0_at": "2026-10-16T07:44:02.515000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-16T13:13:11.622518+00:00",
      "days": 0.22857763331018519,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T07:44:02.515000+00:00",
      "url": null
    },
    "exploit": {
      "at": "2026-10-16T13:13:11.622518+00:00",
      "days": 0.22857763331018519,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T07:44:02.515000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-16T07:44:02.515000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T07:44:02.515000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-75903"
    }
  }
}

published 2026-10-16 12:06Z
last change 2026-10-21 03:59Z

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