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CVE-2026-108491

Status: DeferredHigh (7.1)—
Severity7.1High · CVSS 3.1
Exploitation probability0.15 %higher than 3% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Everest Forms Everest Forms everest-forms allows Stored XSS.This issue affects Everest Forms: from n/a through 3.6.1.

CVSS

Base score
7.1
Version
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.15 %
Percentile among all scored CVEs
3
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.

Cross-site Scripting almacenado (CWE-79) con AV:N, PR:N y UI:R: el script se ejecuta en el navegador de la víctima al cargar la página, sin privilegios previos.

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.

Wpeverest — Everest FormsAI

CWEs

References

Show 1 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-108491",
  "cveTags": [],
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          "id": "CVE-2026-108491",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-15T13:15:44.830865Z"
        }
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          "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": "Everest Forms",
          "product": "Everest Forms",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "3.6.2",
                  "status": "unaffected"
                }
              ],
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "3.6.1"
            }
          ],
          "packageName": "everest-forms",
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected"
        }
      ]
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  ],
  "published": "2026-10-15T11:17:19.677",
  "references": [
    {
      "url": "https://patchstack.com/database/wordpress/plugin/everest-forms/vulnerability/wordpress-everest-forms-plugin-3-6-1-cross-site-scripting-xss-vulnerability-2?_s_id=cve",
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      "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Everest Forms Everest Forms everest-forms allows Stored XSS.This issue affects Everest Forms: from n/a through 3.6.1."
    }
  ],
  "lastModified": "2026-10-15T14:45:38.353",
  "sourceIdentifier": "audit@patchstack.com"
}