CVE-2026-18315

validatedZero produced an exploit or a check.

GHSA-7xx3-2cj6-229w ↗EUVD-2026-62630 ↗

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).+23h06mkevAttacks confirmed in the real world.+55d
themetechmount TrueBooker – Appointment Booking and Scheduler System <= 1.2.6
ETK-2026-1519Zero's internal tracking ID, independent of the CVE number., permanent identifier
+55dTTV
58mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
cve.org publicationpublic poc+1.0dtrigger signal +54dkev+55dcheck availableagent stopped
0
+20d
+40d
+60d

description

TrueBooker – Appointment Booking and Scheduler System for WordPress is affected through version 1.2.6. An unauthenticated remote attacker may change a targeted user's email address and use the normal password-reset process to take over the account. Exploitation requires the vulnerable plugin to be installed and reachable.

mitigation

Deactivate the TrueBooker plugin until a vendor-fixed release is available, or restrict access to the affected site while it remains installed. Review WordPress user email changes and password-reset activity, especially for privileged accounts.

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.
0.60%47th percentile
agent run time
58m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-08-19 18:27Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+23h06m
Δ to kevAttacks confirmed in the real world.
+55d

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. 2026-08-19 18:27Z
  2. 2026-10-13
    vulncheck_kev: trigger signal, started the run
  3. 2026-10-13 00:00Z
  4. 2026-10-14 02:46Z

this entry in the feed

GET /api/v1/feed/CVE-2026-18315

{
  "etk_id": "ETK-2026-1519",
  "cve_id": "CVE-2026-18315",
  "display_id": "CVE-2026-18315",
  "ghsa_id": "GHSA-7xx3-2cj6-229w",
  "euvd_id": "EUVD-2026-62630",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated authorization bypass in TrueBooker",
  "summary": "TrueBooker – Appointment Booking and Scheduler System for WordPress is affected through version 1.2.6. An unauthenticated remote attacker may change a targeted user's email address and use the normal password-reset process to take over the account. Exploitation requires the vulnerable plugin to be installed and reachable.",
  "mitigation": "Deactivate the TrueBooker plugin until a vendor-fixed release is available, or restrict access to the affected site while it remains installed. Review WordPress user email changes and password-reset activity, especially for privileged accounts.",
  "vendor": "themetechmount",
  "product": "TrueBooker – Appointment Booking and Scheduler System",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 1.2.6"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "TrueBooker – Appointment Booking and Scheduler System",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 9.8,
  "cvss_src": "other",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.006,
  "epss_percentile": 0.4767,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 58.0864285,
  "t0_at": "2026-08-19T18:27:41.648000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-14T02:56:31.667717+00:00",
      "days": 55.3533567096875,
      "is_lower_bound": false,
      "measured_at": "2026-08-19T18:27:41.648000+00:00",
      "url": null
    },
    "kev": {
      "at": "2026-10-13T00:00:00+00:00",
      "days": 55,
      "is_lower_bound": false,
      "measured_at": "2026-08-19T18:27:41.648000+00:00",
      "precision": "day",
      "url": "https://vulncheck.com/cve/CVE-2026-18315"
    },
    "public_poc": {
      "at": "2026-08-20T17:33:36+00:00",
      "days": 0.9624346296296297,
      "is_lower_bound": false,
      "measured_at": "2026-08-19T18:27:41.648000+00:00",
      "url": "https://github.com/nastar-id/CVE-2026-18315-PoC"
    },
    "trigger_signal": {
      "at": "2026-10-13T00:00:00+00:00",
      "days": 54.230767962962965,
      "is_lower_bound": false,
      "measured_at": "2026-08-19T18:27:41.648000+00:00",
      "url": "https://vulncheck.com/cve/CVE-2026-18315"
    }
  }
}

published 2026-10-13 23:49Z
last change 2026-10-21 05:00Z

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