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GHSA-VXH9-PJMH-2356

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

Details

Wirtualna Uczelnia is vulnerable to Reflected Cross‑Site Scripting (XSS) due to insecure handling of the locale parameter across multiple endpoints. An attacker can craft a malicious URL with JavaScript embedded in the locale parameter and send it to a victim. When the victim opens the link, the injected script will be executed in their browser.

This issue affects Wirtualna Uczelnia versions up to wu#2016.437.295#0#20260327_105545

Severity

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-34907"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-02T10:16:24Z",
    "severity": "MODERATE"
  },
  "details": "Wirtualna Uczelnia is vulnerable to Reflected Cross\u2011Site Scripting (XSS) due to insecure handling of the locale parameter across multiple endpoints. An attacker can craft a malicious URL with JavaScript embedded in the locale parameter and send it to a victim. When the victim opens the link, the injected script will be executed in their browser.\n\n\nThis issue affects Wirtualna Uczelnia versions up to wu#2016.437.295#0#20260327_105545",
  "id": "GHSA-vxh9-pjmh-2356",
  "modified": "2026-06-02T12:31:25Z",
  "published": "2026-06-02T12:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34907"
    },
    {
      "type": "WEB",
      "url": "https://cert.pl/posts/2026/06/CVE-2026-34906"
    },
    {
      "type": "WEB",
      "url": "https://simple.com.pl/branze/edukacyjna"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-34907 (GCVE-0-2026-34907)

Vulnerability from cvelistv5 – Published: 2026-06-02 08:31 – Updated: 2026-06-02 13:22

Title

Reflected Cross-Site Scripting (XSS) in Wirtualna Uczelnia

Summary

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-02 13:20 UTC

CWE

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

Assigner

CERT-PL ENISA root Scorecard

References

2 references

URL	Tags
https://cert.pl/posts/2026/06/CVE-2026-34906	third-party-advisory
https://simple.com.pl/branze/edukacyjna/	product

Impacted products

1 product

Vendor	Product	Version
Simple SA	Wirtualna Uczelnia	Affected: 0 , ≤ wu#2016.437.295#0#20260327_105545 (custom)

Credits

Dawid Małecki - VIPentest

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34907",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-02T13:20:21.777712Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-02T13:22:35.624Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Wirtualna Uczelnia",
          "vendor": "Simple SA",
          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dawid Ma\u0142ecki - VIPentest"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eWirtualna Uczelnia is vulnerable to Reflected Cross\u2011Site Scripting (XSS) due to insecure handling of the \u003cem\u003elocale\u003c/em\u003e parameter across multiple endpoints. An attacker can craft a malicious URL with JavaScript embedded in the \u003cem\u003elocale\u003c/em\u003e parameter and send it to a victim. When the victim opens the link, the injected script will be executed in their browser.\u003c/div\u003e\u003cbr\u003eThis issue affects Wirtualna Uczelnia versions up to wu#2016.437.295#0#20260327_105545\u003cbr\u003e"
            }
          ],
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        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-591",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-591 Reflected XSS"
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          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.1,
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            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
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            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
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            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-79",
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              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-06-02T08:31:09.890Z",
        "orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
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      "references": [
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          "tags": [
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          "url": "https://cert.pl/posts/2026/06/CVE-2026-34906"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://simple.com.pl/branze/edukacyjna/"
        }
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      "source": {
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    "dateReserved": "2026-03-31T12:34:08.476Z",
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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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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GHSA-VXH9-PJMH-2356

CVE-2026-34907 (GCVE-0-2026-34907)

Tags

Sightings

Nomenclature

Related by attack behaviour