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CVE-2026-78263

Status: DeferredHigh (7.1)—

Unauthenticated Cross Site Scripting (XSS) in Event Tickets <= 5.29.2.1 versions.

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.

XSS sin autenticación (CWE-79, AV:N, UI:R) en Event Tickets permite inyección de JavaScript en el navegador del usuario, ejecución de scripts en contexto web.

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

Restrict Web-Based ContentUser TrainingExecution PreventionBehavior Prevention on EndpointDisable 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.

Event Tickets — Event TicketsAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-78263",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-78263",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-25T18:32:42.998008Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "audit@patchstack.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "audit@patchstack.com",
      "affectedData": [
        {
          "vendor": "Nexcess",
          "product": "Event Tickets",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "5.29.3",
                  "status": "unaffected"
                }
              ],
              "version": "n/a",
              "versionType": "custom",
              "lessThanOrEqual": "5.29.2.1"
            }
          ],
          "packageName": "event-tickets",
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-08-24T22:17:20.133",
  "references": [
    {
      "url": "https://patchstack.com/database/wordpress/plugin/event-tickets/vulnerability/wordpress-event-tickets-plugin-5-29-2-1-cross-site-scripting-xss-vulnerability?_s_id=cve",
      "source": "audit@patchstack.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "audit@patchstack.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Unauthenticated Cross Site Scripting (XSS) in Event Tickets <= 5.29.2.1 versions."
    }
  ],
  "lastModified": "2026-08-26T16:19:05.917",
  "sourceIdentifier": "audit@patchstack.com"
}