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CVE-2026-90531

Status: Undergoing AnalysisCritical (9.6)—
Severity9.6Critical · CVSS 3.1
Exploitation probability0.47 %higher than 40% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Adobe Experience Manager is affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could result in privilege escalation. A low-privileged attacker could exploit this vulnerability to gain elevated access to internal resources. Exploitation of this issue does not require user interaction. Scope is changed.

CVSS

Base score
9.6
Version
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.47 %
Percentile among all scored CVEs
40
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).

ATT&CK techniques

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

Vector AV:N/PR:L/UI:N: explotación remota con privilegios bajos. El texto solo indica escalada de privilegios y acceso a recursos internos, sin ejecución de comandos; T1005 es inferencia habitual de XXE.

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 ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationDisable or Remove Feature or ProgramApplication Isolation and Sandboxing

Affected technologies (1)

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

Adobe — Experience ManagerAI

CWEs

References

Show 1 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-90531",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-90531",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-13T00:00:00+00:00"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@adobe.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9.6,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.8,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@adobe.com",
      "affectedData": [
        {
          "vendor": "Adobe",
          "product": "Adobe Experience Manager as a Cloud Service",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "2026.9.28187"
            },
            {
              "status": "unaffected",
              "version": "2026.9.28386",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Adobe",
          "product": "Adobe Experience Manager 6.5 LTS",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "6.5 LTS SP3"
            },
            {
              "status": "unaffected",
              "version": "6.5 LTS SP1 - Hotfix for GRANITE-71772, 6.5 LTS SP2 - Hotfix for GRANITE-71772, 6.5 LTS SP3 - Hotfix for GRANITE-71772",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
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        {
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          "product": "Adobe Experience Manager 6.5",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "6.5.25"
            },
            {
              "status": "unaffected",
              "version": "6.5.22 - Hotfix for GRANITE-71772, 6.5.23 - Hotfix for GRANITE-71772, 6.5.24 - Hotfix for GRANITE-71772, 6.5.25 - Hotfix for GRANITE-71772",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-10-13T20:19:10.030",
  "references": [
    {
      "url": "https://helpx.adobe.com/security/products/experience-manager/apsb26-152.html",
      "source": "psirt@adobe.com"
    }
  ],
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@adobe.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-611"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Adobe Experience Manager is affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could result in privilege escalation. A low-privileged attacker could exploit this vulnerability to gain elevated access to internal resources. Exploitation of this issue does not require user interaction. Scope is changed."
    }
  ],
  "lastModified": "2026-10-14T15:50:50.180",
  "sourceIdentifier": "psirt@adobe.com"
}