CVE-2025-52097

waiting for further signalsZero needs more public information before it can validate it.

GHSA-f4qw-x63m-jfrp ↗EUVD-2025-211106 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).+5.1dkevAttacks confirmed in the real world.
InstantASP ltd InstantForum.NET n/a
ETK-2026-2276Zero's internal tracking ID, independent of the CVE number., permanent identifier
34msince last run
18mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal (cve.org) +0dpublic poc+5.1dwaiting for further signals+5.2d
0
+1d
+2d
+3d
+4d

description

InstantForum.NET 4.1.4 is affected by reflected cross-site scripting in pages that include query parameter values in HTML responses. An attacker may cause script to run in a visitor's browser when the visitor accesses a crafted application URL.

mitigation

Apply output encoding to query-derived values before they are included in HTML, and validate or reject unexpected query parameters. Until the application is corrected, restrict access to exposed forum endpoints where practical; no fixed version is recorded in the advisory.

check
no
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.
contextual
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
18m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-16 00:00Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+5.1d
Δ to kevAttacks confirmed in the real world.
–

outcome

Contextual: an exploit technique exists, but no deterministic check could cover this one.

source signals

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

  1. 2026-10-16 00:00Z
    cve_org: trigger signal, started the run
  2. 2026-10-21 03:32Z

this entry in the feed

GET /api/v1/feed/CVE-2025-52097

{
  "etk_id": "ETK-2026-2276",
  "cve_id": "CVE-2025-52097",
  "display_id": "CVE-2025-52097",
  "ghsa_id": "GHSA-f4qw-x63m-jfrp",
  "euvd_id": "EUVD-2025-211106",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Reflected cross-site scripting in InstantForum.NET",
  "summary": "InstantForum.NET 4.1.4 is affected by reflected cross-site scripting in pages that include query parameter values in HTML responses. An attacker may cause script to run in a visitor's browser when the visitor accesses a crafted application URL.",
  "mitigation": "Apply output encoding to query-derived values before they are included in HTML, and validate or reject unexpected query parameters. Until the application is corrected, restrict access to exposed forum endpoints where practical; no fixed version is recorded in the advisory.",
  "vendor": "InstantASP ltd",
  "product": "InstantForum.NET",
  "affected": [
    {
      "affected_notes": [
        "n/a"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "n/a",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": null,
  "cvss_src": null,
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 17.7081026,
  "t0_at": "2026-10-16T00:00:00+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-21T03:32:56.576462+00:00",
      "days": 5.147877042384259,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T00:00:00+00:00",
      "url": "https://github.com/rwilsonecs/CVE-2025-52097"
    },
    "trigger_signal": {
      "at": "2026-10-16T00:00:00+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T00:00:00+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-52097"
    }
  }
}

published 2026-10-21 03:32Z
last change 2026-10-21 05:00Z

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