Vulnerability-Lookup

CVE-2026-81737 (GCVE-0-2026-81737)

Vulnerability from cvelistv5 – Published: 2026-09-02 06:00 – Updated: 2026-09-02 10:45

Title

FAQ Builder AYS 1.6.3 - 1.8.4 - Unauthenticated Stored XSS via ays_get_user_information

Summary

The FAQ Builder AYS WordPress plugin before 1.8.5 does not sanitize or escape content submitted by unauthenticated visitors before storing it and outputting it in an admin area page, and the escaping it does apply is undone by a subsequent decoding step, leading to Stored XSS which will execute in the context of a logged in administrator.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 10:37 UTC

CWE

CWE-79 Cross-Site Scripting (XSS)
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

WPScan mitre root

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/b8a97781-5c3b-4a…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version	CPE status
Unknown	FAQ Builder AYS	Affected: 1.6.3 , < 1.8.5 (semver)	guessed

Credits

Pablo González Pérez Francisco José Ramírez Vicente and Iñigo Sánchez Enciso WPScan

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
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          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
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              "userInteraction": "REQUIRED",
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            }
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      ],
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          "type": "finder",
          "value": "Pablo Gonz\u00e1lez P\u00e9rez"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Francisco Jos\u00e9 Ram\u00edrez Vicente and I\u00f1igo S\u00e1nchez Enciso"
        },
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        }
      ],
      "source": {
        "discovery": "EXTERNAL"
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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    "epss": {
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      "date": "2026-09-02",
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      "percentile": "0.05108"
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    "vulnrichment": {
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}

FKIE_CVE-2026-81737

Vulnerability from fkie_nvd - Published: 2026-09-02 06:17 - Updated: 2026-09-02 11:17

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	contact@wpscan.com	https://wpscan.com/vulnerability/b8a97781-5c3b-4a89-845e-ee4eb60ea29c/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "FAQ Builder AYS",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "1.8.5",
              "status": "affected",
              "version": "1.6.3",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "contact@wpscan.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The FAQ Builder AYS WordPress plugin before 1.8.5 does not sanitize or escape content submitted by unauthenticated visitors before storing it and outputting it in an admin area page, and the escaping it does apply is undone by a subsequent decoding step, leading to Stored XSS which will execute in the context of a logged in administrator."
    }
  ],
  "id": "CVE-2026-81737",
  "lastModified": "2026-09-02T11:17:24.223",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-81737",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-02T10:37:40.946396Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-02T06:17:19.667",
  "references": [
    {
      "source": "contact@wpscan.com",
      "url": "https://wpscan.com/vulnerability/b8a97781-5c3b-4a89-845e-ee4eb60ea29c/"
    }
  ],
  "sourceIdentifier": "contact@wpscan.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-RG8X-42CW-C3JX

Vulnerability from github – Published: 2026-09-02 06:31 – Updated: 2026-09-02 12:31

Details

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-81737"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-02T06:17:19Z",
    "severity": "HIGH"
  },
  "details": "The FAQ Builder AYS WordPress plugin before 1.8.5 does not sanitize or escape content submitted by unauthenticated visitors before storing it and outputting it in an admin area page, and the escaping it does apply is undone by a subsequent decoding step, leading to Stored XSS which will execute in the context of a logged in administrator.",
  "id": "GHSA-rg8x-42cw-c3jx",
  "modified": "2026-09-02T12:31:29Z",
  "published": "2026-09-02T06:31:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81737"
    },
    {
      "type": "WEB",
      "url": "https://wpscan.com/vulnerability/b8a97781-5c3b-4a89-845e-ee4eb60ea29c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-81737 (GCVE-0-2026-81737)

FKIE_CVE-2026-81737

GHSA-RG8X-42CW-C3JX

Tags

Sightings

Nomenclature