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CVE-2026-2020

Status: DeferredHigh (7.5)—

The JS Archive List plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.1.7 via the 'included' shortcode attribute. This is due to the deserialization of untrusted input supplied via the 'included' parameter of the plugin's shortcode. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

CVSS

Exploitation probability (EPSS)

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).

🎯 ATT&CK techniques

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

Requiere PR:L (privilegios autenticados) y acceso a red sin interacción; PHP Object Injection puede ejecutar código, manipular datos o borrar archivos según cadenas POP disponibles.

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

Privileged Account ManagementNetwork SegmentationDisable or Remove Feature or ProgramVulnerability ScanningUser Account ManagementThreat Intelligence Program

Affected technologies (1)

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

JS Archive List — JS Archive ListAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-2020",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-2020",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-09T19:07:38.723061Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@wordfence.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "security@wordfence.com",
      "affectedData": [
        {
          "vendor": "skatox",
          "product": "JS Archive List",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.7"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-03-07T02:16:12.077",
  "references": [
    {
      "url": "https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7/classes/class-jq-archive-list-widget.php#L674",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7/classes/class-js-archive-list-settings.php#L10",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/classes/class-jq-archive-list-widget.php#L674",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/classes/class-js-archive-list-settings.php#L10",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3466978%40jquery-archive-list-widget&new=3466978%40jquery-archive-list-widget&sfp_email=&sfph_mail=",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9b0f6653-471b-4cee-9c92-f24dbe2c2dbd?source=cve",
      "source": "security@wordfence.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The JS Archive List plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.1.7 via the 'included' shortcode attribute. This is due to the deserialization of untrusted input supplied via the 'included' parameter of the plugin's shortcode. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code."
    },
    {
      "lang": "es",
      "value": "El plugin JS Archive List para WordPress es vulnerable a la inyección de objetos PHP en todas las versiones hasta la 6.1.7, inclusive, a través del atributo del shortcode 'included'. Esto se debe a la deserialización de entrada no confiable suministrada a través del parámetro 'included' del shortcode del plugin. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador y superior, inyecten un objeto PHP. No se conoce ninguna cadena POP presente en el software vulnerable. Si una cadena POP está presente a través de un plugin o tema adicional instalado en el sistema objetivo, podría permitir al atacante eliminar archivos arbitrarios, recuperar datos sensibles o ejecutar código."
    }
  ],
  "lastModified": "2026-06-17T10:30:01.713",
  "sourceIdentifier": "security@wordfence.com"
}