← back to feed
CVE-2026-93483

CVE-2026-93483

validatedZero produced an exploit or a check.

GHSA-g4fx-r8m5-c6r7 ↗EUVD-2026-101820 ↗

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.
Znuny < 6.5.25; >= 7.0.0, < 7.3.7
fixed in 6.5.25, 7.3.7
CWE-348 Use of Less Trusted Source
ETK-2026-1640Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss9.5cna vendorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/AU:Y/R:U/RE:L/U:Red
+2h15mTTV
1h 30mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0hcheck available+2h15magent stopped
0
+1h
+2h

description

Znuny deployments using the HTTPBasicAuth authentication backend are affected by an authentication bypass. A remote attacker may impersonate an existing user, including an administrator, and access data and administrative functions if the affected authentication configuration is enabled.

mitigation

Upgrade Znuny to 6.5.25 or 7.3.7. Until upgraded, disable HTTPBasicAuth as an authentication backend or restrict access to affected interfaces.

fixed in 6.5.25, 7.3.7

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.
0.23%13th percentile
agent run time
1h 30m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-15 03:43Z
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. 2026-10-15 03:43Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-93483

this entry in the feed

GET /api/v1/feed/CVE-2026-93483

{
  "etk_id": "ETK-2026-1640",
  "cve_id": "CVE-2026-93483",
  "display_id": "CVE-2026-93483",
  "ghsa_id": "GHSA-g4fx-r8m5-c6r7",
  "euvd_id": "EUVD-2026-101820",
  "status": "published",
  "anchor_state": "anchored",
  "title": "HTTPBasicAuth authentication bypass in Znuny",
  "summary": "Znuny deployments using the HTTPBasicAuth authentication backend are affected by an authentication bypass. A remote attacker may impersonate an existing user, including an administrator, and access data and administrative functions if the affected authentication configuration is enabled.",
  "mitigation": "Upgrade Znuny to 6.5.25 or 7.3.7. Until upgraded, disable HTTPBasicAuth as an authentication backend or restrict access to affected interfaces.",
  "vendor": "Znuny",
  "product": "Znuny",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 6.5.25",
        ">= 7.0.0, < 7.3.7"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "6.5.25",
        "7.3.7"
      ],
      "package_name": "Znuny",
      "purl": null
    }
  ],
  "cwes": [
    348
  ],
  "cvss_score": 9.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/AU:Y/R:U/RE:L/U:Red",
  "epss_score": 0.0023,
  "epss_percentile": 0.134,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 89.84037153333334,
  "t0_at": "2026-10-15T03:43:10.406000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-15T05:57:53.578114+00:00",
      "days": 0.09355523280092592,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T03:43:10.406000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-15T03:43:10.406000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T03:43:10.406000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-93483"
    }
  }
}

published 2026-10-15 04:27Z
last change 2026-10-21 05:31Z

Need the technical details behind an entry?

Every entry here shows what we attempted and when. The technical details, the generated exploit that fired it and the evidence behind the verdict are not public. Tell us about your use case and we’ll get back to you about extended API access.

Protected by reCAPTCHA; the Google Privacy Policy and Terms of Service apply.