CVE-2026-97328

validatedZero produced an exploit or a check.

GHSA-3hr8-rx2p-fg8c ↗EUVD-2026-108020 ↗

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.
WebP Express < 0.25.16
fixed in 0.25.16
ETK-2026-2405Zero's internal tracking ID, independent of the CVE number., permanent identifier
+2h34mTTV
26mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0hcheck available+2h34magent stopped
0
+1h
+2h

description

WebP Express versions before 0.25.16 are affected by stored cross-site scripting when a non-default image delivery mode is enabled. An unauthenticated attacker may cause browser-side script execution for users viewing an affected page, including administrators.

mitigation

Upgrade WebP Express to version 0.25.16 or later. Until upgraded, use the default image delivery mode to reduce exposure.

fixed in 0.25.16

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
26m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-22 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. 2026-10-22 06:00Z
    ghsa: trigger signal, started the run
  2. 2026-10-22 06:00Z

this entry in the feed

GET /api/v1/feed/CVE-2026-97328

{
  "etk_id": "ETK-2026-2405",
  "cve_id": "CVE-2026-97328",
  "display_id": "CVE-2026-97328",
  "ghsa_id": "GHSA-3hr8-rx2p-fg8c",
  "euvd_id": "EUVD-2026-108020",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stored cross-site scripting in WebP Express",
  "summary": "WebP Express versions before 0.25.16 are affected by stored cross-site scripting when a non-default image delivery mode is enabled. An unauthenticated attacker may cause browser-side script execution for users viewing an affected page, including administrators.",
  "mitigation": "Upgrade WebP Express to version 0.25.16 or later. Until upgraded, use the default image delivery mode to reduce exposure.",
  "vendor": null,
  "product": "WebP Express",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 0.25.16"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "0.25.16"
      ],
      "package_name": "WebP Express",
      "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": 25.9575623,
  "t0_at": "2026-10-22T06:00:18.825000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-22T08:34:31.266189+00:00",
      "days": 0.1070884396875,
      "is_lower_bound": false,
      "measured_at": "2026-10-22T06:00:18.825000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-22T06:00:18.825000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-22T06:00:18.825000+00:00",
      "url": "https://github.com/advisories/GHSA-3hr8-rx2p-fg8c"
    }
  }
}

published 2026-10-22 08:08Z
last change 2026-10-22 08:44Z

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