CVE-2026-56662

validated

GHSA-2rxv-4g4m-573w ↗EUVD-2026-91018 ↗

check availablenot proven exploitable

cve.orgpublic poc−87dkev

GetSimpleCMS-CE <= 1.4

fixed in 1.5

CWE-352 Cross-Site Request Forgery (CSRF)

ETK-2026-288, permanent identifier

cvss9.6cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

+8h20mTTV

30mAI analysis

Check if you are vulnerable

timeline

0 = trigger signal

public poc−2.9motrigger signal (cve.org) +0mocheck available+0.0moagent stopped

−2mo

−1mo

description

GetSimpleCMS-CE UpdateCE versions before 1.5 do not protect the update form against cross-site request forgery. An attacker can cause an authenticated administrator who visits a malicious page to initiate an attacker-directed update deployment, potentially resulting in code execution.

mitigation

Upgrade the UpdateCE package to version 1.5. Until upgrading, restrict access to administrative update functions and prevent administrators from using them while signed in from untrusted browsing contexts.

fixed in 1.5

check

available

exploit

automation

deterministic

auth required

EPSS

0.22%11th percentile

agent run time

30m

cve.org record, t = 0

2026-10-01 19:38Z

Δ to public poc

−87d

Δ to kev

–

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.

2026-07-06 16:02Z
public poc
https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-2rxv-4g4m-573w
2026-10-01 19:38Z
cve_org: trigger signal, started the run
https://www.cve.org/CVERecord?id=CVE-2026-56662

this entry in the feed

GET /api/v1/feed/CVE-2026-56662

{
  "etk_id": "ETK-2026-288",
  "cve_id": "CVE-2026-56662",
  "display_id": "CVE-2026-56662",
  "ghsa_id": "GHSA-2rxv-4g4m-573w",
  "euvd_id": "EUVD-2026-91018",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Cross-site request forgery in GetSimpleCMS-CE UpdateCE",
  "summary": "GetSimpleCMS-CE UpdateCE versions before 1.5 do not protect the update form against cross-site request forgery. An attacker can cause an authenticated administrator who visits a malicious page to initiate an attacker-directed update deployment, potentially resulting in code execution.",
  "mitigation": "Upgrade the UpdateCE package to version 1.5. Until upgrading, restrict access to administrative update functions and prevent administrators from using them while signed in from untrusted browsing contexts.",
  "vendor": "GetSimpleCMS-CE",
  "product": "GetSimpleCMS-CE",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.4"
      ],
      "ecosystem": "php",
      "fixed_versions": [
        "1.5"
      ],
      "package_name": "UpdateCE",
      "purl": null
    }
  ],
  "cwes": [
    352
  ],
  "cvss_score": 9.6,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
  "epss_score": 0.0022,
  "epss_percentile": 0.1128,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 29.956317183333333,
  "t0_at": "2026-10-01T19:38:30.623000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-02T03:58:49.949668+00:00",
      "days": 0.34744591050925927,
      "is_lower_bound": false,
      "measured_at": "2026-10-01T19:38:30.623000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-07-06T16:02:12+00:00",
      "days": -87.15021554398149,
      "is_lower_bound": false,
      "measured_at": "2026-10-01T19:38:30.623000+00:00",
      "url": "https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-2rxv-4g4m-573w"
    },
    "trigger_signal": {
      "at": "2026-10-01T19:38:30.623000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-01T19:38:30.623000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-56662"
    }
  }
}

published 2026-10-01 23:13Z
last change 2026-10-21 14:33Z

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