CVE-2026-108924

Status: DeferredMedium (5.3)—PoC

Severity5.3Medium · CVSS 4.0

Exploitation probability0.40 %higher than 33% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailableProof of concept on GitHub (unverified)

A vulnerability was identified in getkirby Kirby up to 4.9.5/5.5.3. Affected by this issue is the function OptionsQuery::resolve of the file src/Option/OptionsQuery.php of the component Dynamic Option Generation. The manipulation leads to authorization bypass. The attack is possible to be carried out remotely. Upgrading to version 4.9.6 and 5.6.0 can resolve this issue. You should upgrade the affected component.

CVSS

Base score: 5.3
Version: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.40 %
Percentile among all scored CVEs: 33
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Proof of concept on GitHub (unverified) · List of proofs of concept on GitHub

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement85 %
Primary impactT1078.001 Default Accountsstealth · persistence · privilege escalation · initial access75 %

Vulnerabilidad remota de bypass de autorización (CWE-285, CWE-639) en Kirby requiriendo PR:L; acceso remoto mediante servicios remotos (T1210). Impacto principal: obtención de acceso no autorizado a funciones restringidas (T1078.001).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Vulnerability Scanning Threat Intelligence Program Privileged Account Management Password Policies Network Segmentation Multi-factor Authentication

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Getkirby — Kirby^AI

CWEs

CWE-285, CWE-639

References

Show 8 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-108924",
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          "role": "CISA Coordinator",
          "options": [
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          "timestamp": "2026-10-16T16:31:03.471669Z"
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      "affectedData": [
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            "cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*"
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          "vendor": "getkirby",
          "modules": [
            "Dynamic Option Generation"
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          "product": "Kirby",
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      "url": "https://github.com/getkirby/kirby/",
      "source": "cna@vuldb.com"
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    {
      "url": "https://github.com/getkirby/kirby/releases/tag/4.9.6",
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      "url": "https://vuldb.com/cve/CVE-2026-108924",
      "source": "cna@vuldb.com"
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    {
      "url": "https://vuldb.com/submit/997196",
      "source": "cna@vuldb.com"
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      "lang": "en",
      "value": "A vulnerability was identified in getkirby Kirby up to 4.9.5/5.5.3. Affected by this issue is the function OptionsQuery::resolve of the file src/Option/OptionsQuery.php of the component Dynamic Option Generation. The manipulation leads to authorization bypass. The attack is possible to be carried out remotely. Upgrading to version 4.9.6 and 5.6.0 can resolve this issue. You should upgrade the affected component."
    }
  ],
  "lastModified": "2026-10-16T18:17:29.653",
  "sourceIdentifier": "cna@vuldb.com"
}