Vulnerability-Lookup

GHSA-5PC3-V4C3-6PV4

Vulnerability from github – Published: 2026-08-27 21:31 – Updated: 2026-08-27 21:31

Details

Spring Authorization Server's default consent page renders user-controlled values without HTML entity encoding. When using the DefaultConsentPage, an attacker can craft an OAuth2 authorization request containing a malicious value that is stored server-side and later rendered unencoded in the default consent page presented to the end user. Spring Authorization Server 1.5.0 - 1.5.8 Spring Authorization Server 1.4.0 - 1.4.11

Severity

8.2 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-59316"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-27T20:17:57Z",
    "severity": "HIGH"
  },
  "details": "Spring Authorization Server\u0027s default consent page renders user-controlled values without HTML entity encoding. When using the DefaultConsentPage, an attacker can craft an OAuth2 authorization request containing a malicious value that is stored server-side and later rendered unencoded in the default consent page presented to the end user.\nSpring Authorization Server 1.5.0 - 1.5.8\nSpring Authorization Server 1.4.0 - 1.4.11",
  "id": "GHSA-5pc3-v4c3-6pv4",
  "modified": "2026-08-27T21:31:49Z",
  "published": "2026-08-27T21:31:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59316"
    },
    {
      "type": "WEB",
      "url": "https://spring.io/security/cve-2026-59316"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-59316 (GCVE-0-2026-59316)

Vulnerability from cvelistv5 – Published: 2026-08-27 18:04 – Updated: 2026-08-27 18:04

Title

Spring Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XSS)

Summary

Severity

8.2 (High)


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

CWE

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

Assigner

vmware mitre root

References

1 reference

URL	Tags
https://spring.io/security/cve-2026-59316

Impacted products

1 product

Vendor	Product	Version
Spring	Spring Authorization Server	Affected: 1.5.0 , ≤ 1.5.8 (custom) Affected: 1.4.0 , ≤ 1.4.11 (custom)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Spring Authorization Server",
          "vendor": "Spring",
          "versions": [
            {
              "lessThanOrEqual": "1.5.8",
              "status": "affected",
              "version": "1.5.0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "1.4.11",
              "status": "affected",
              "version": "1.4.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eSpring Authorization Server\u0027s default consent page renders user-controlled values without HTML entity encoding. When using the DefaultConsentPage, an attacker can craft an OAuth2 authorization request containing a malicious value that is stored server-side and later rendered unencoded in the default consent page presented to the end user.\u003c/p\u003e\u003cp\u003eSpring Authorization Server 1.5.0 - 1.5.8\u003cbr/\u003eSpring Authorization Server 1.4.0 - 1.4.11\u003c/p\u003e"
            }
          ],
          "value": "Spring Authorization Server\u0027s default consent page renders user-controlled values without HTML entity encoding. When using the DefaultConsentPage, an attacker can craft an OAuth2 authorization request containing a malicious value that is stored server-side and later rendered unencoded in the default consent page presented to the end user.\nSpring Authorization Server 1.5.0 - 1.5.8\nSpring Authorization Server 1.4.0 - 1.4.11"
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "Spring Authorization Server\u0027s default consent page renders user-controlled values without HTML entity encoding. When using the DefaultConsentPage, an attacker can craft an OAuth2 authorization request containing a malicious value that is stored server-side and later rendered unencoded in the default consent page presented to the end user."
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-27T18:04:44.963Z",
        "orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
        "shortName": "vmware"
      },
      "references": [
        {
          "url": "https://spring.io/security/cve-2026-59316"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Spring Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XSS)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
    "assignerShortName": "vmware",
    "cveId": "CVE-2026-59316",
    "datePublished": "2026-08-27T18:04:44.963Z",
    "dateReserved": "2026-07-04T18:13:57.026Z",
    "dateUpdated": "2026-08-27T18:04:44.963Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

GHSA-5PC3-V4C3-6PV4

CVE-2026-59316 (GCVE-0-2026-59316)

Tags

Sightings

Nomenclature