Vulnerability-Lookup

CVE-2026-76986 (GCVE-0-2026-76986)

Vulnerability from cvelistv5 – Published: 2026-08-31 13:25 – Updated: 2026-08-31 14:22

Title

Apache Wicket: XSS in AbstractSingleSelectChoice via getNullValidDisplayValue

Summary

Improper neutralization of input during web page generation in Apache Wicket. org.apache.wicket.markup.html.form.AbstractSingleSelectChoice, the base class of DropDownChoice, writes the body of the default option — the entry shown when no choice is selected — into the markup as it is, while every other option body in the same select is escaped according to the escape-model-strings setting. The body comes from getNullValidDisplayValue() or getNullKeyDisplayValue(), both of which are protected, so what they return is not necessarily the plain text the default implementation reads from a resource bundle. An application is affected where it overrides one of those methods and returns a value holding data an attacker can influence, or where its own nullValid or null bundle entry holds such a value. The bundles shipped with Wicket contain plain text. RadioChoice overrides getDefaultChoice to emit no default option and is not affected. As a workaround, escape the value in the override. This issue affects Apache Wicket: from 8.0.0 through 8.18.0, from 9.0.0 through 9.23.0, from 10.0.0 through 10.10.0. Older, unsupported releases from 1.5.0 onwards are also affected. Users are recommended to upgrade to version 8.19.0, 9.24.0 or 10.11.0, which fix the issue.

Severity

6.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-31 14:22 UTC

CWE

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

Assigner

apache mitre root

References

2 references

URL	Tags
https://lists.apache.org/thread/4qltg6wckqz8wbs1f…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/08/31/6

Impacted products

1 product

Vendor	Product	Version	CPE status
Apache Software Foundation	Apache Wicket	Affected: 8.0.0 , ≤ 8.18.0 (semver) Affected: 9.0.0 , ≤ 9.23.0 (semver) Affected: 10.0.0 , ≤ 10.10.0 (semver)	guessed

Credits

Emond Papegaaij

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-76986

Vulnerability from fkie_nvd - Published: 2026-08-31 14:17 - Updated: 2026-08-31 18:44

Severity

6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Summary

References

	URL	Tags
	security@apache.org	https://lists.apache.org/thread/4qltg6wckqz8wbs1f4jzqlc0yccpgvll
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/08/31/6

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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GHSA-693X-MFGG-48MQ

Vulnerability from github – Published: 2026-08-31 15:34 – Updated: 2026-08-31 15:34

Details

Improper neutralization of input during web page generation in Apache Wicket.

org.apache.wicket.markup.html.form.AbstractSingleSelectChoice, the base class of DropDownChoice, writes the body of the default option — the entry shown when no choice is selected — into the markup as it is, while every other option body in the same select is escaped according to the escape-model-strings setting. The body comes from getNullValidDisplayValue() or getNullKeyDisplayValue(), both of which are protected, so what they return is not necessarily the plain text the default implementation reads from a resource bundle.

An application is affected where it overrides one of those methods and returns a value holding data an attacker can influence, or where its own nullValid or null bundle entry holds such a value. The bundles shipped with Wicket contain plain text. RadioChoice overrides getDefaultChoice to emit no default option and is not affected.

As a workaround, escape the value in the override.

This issue affects Apache Wicket: from 8.0.0 through 8.18.0, from 9.0.0 through 9.23.0, from 10.0.0 through 10.10.0. Older, unsupported releases from 1.5.0 onwards are also affected. Users are recommended to upgrade to version 8.19.0, 9.24.0 or 10.11.0, which fix the issue.

Severity

6.1 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-76986"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-31T14:17:23Z",
    "severity": "MODERATE"
  },
  "details": "Improper neutralization of input during web page generation in Apache Wicket.\n\norg.apache.wicket.markup.html.form.AbstractSingleSelectChoice, the base class of DropDownChoice, writes the body of the default option \u2014 the entry shown when no choice is selected \u2014 into the markup as it is, while every other option body in the same select is escaped according to the escape-model-strings setting. The body comes from getNullValidDisplayValue() or getNullKeyDisplayValue(), both of which are protected, so what they return is not necessarily the plain text the default implementation reads from a resource bundle.\n\nAn application is affected where it overrides one of those methods and returns a value holding data an attacker can influence, or where its own nullValid or null bundle entry holds such a value. The bundles shipped with Wicket contain plain text. RadioChoice overrides getDefaultChoice to emit no default option and is not affected.\n\nAs a workaround, escape the value in the override.\n\nThis issue affects Apache Wicket: from 8.0.0 through 8.18.0, from 9.0.0 through 9.23.0, from 10.0.0 through 10.10.0. Older, unsupported releases from 1.5.0 onwards are also affected. Users are recommended to upgrade to version 8.19.0, 9.24.0 or 10.11.0, which fix the issue.",
  "id": "GHSA-693x-mfgg-48mq",
  "modified": "2026-08-31T15:34:45Z",
  "published": "2026-08-31T15:34:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76986"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/4qltg6wckqz8wbs1f4jzqlc0yccpgvll"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/08/31/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

WID-SEC-W-2026-3091

Vulnerability from csaf_certbund - Published: 2026-08-30 22:00 - Updated: 2026-08-31 22:00

Summary

Apache Wicket: Mehrere Schwachstellen

Severity

Hoch

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: Apache Wicket ist ein komponentenbasiertes Web-Framework für die Programmiersprache Java.

Angriff: Ein Angreifer kann mehrere Schwachstellen in Apache Wicket ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen oder Cross-Site-Scripting-Angriffe durchzuführen.

Betroffene Betriebssysteme: - Sonstiges - UNIX - Windows

CVE-2026-70449

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apache Wicket <8.19.0 Apache / Wicket		<8.19.0
Apache Wicket <9.24.0 Apache / Wicket		<9.24.0
Apache Wicket <10.11.0 Apache / Wicket		<10.11.0

CVE-2026-71257

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apache Wicket <8.19.0 Apache / Wicket		<8.19.0
Apache Wicket <9.24.0 Apache / Wicket		<9.24.0
Apache Wicket <10.11.0 Apache / Wicket		<10.11.0

CVE-2026-71378

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apache Wicket <8.19.0 Apache / Wicket		<8.19.0
Apache Wicket <9.24.0 Apache / Wicket		<9.24.0
Apache Wicket <10.11.0 Apache / Wicket		<10.11.0

CVE-2026-75802

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apache Wicket <8.19.0 Apache / Wicket		<8.19.0
Apache Wicket <9.24.0 Apache / Wicket		<9.24.0
Apache Wicket <10.11.0 Apache / Wicket		<10.11.0

CVE-2026-76982

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apache Wicket <8.19.0 Apache / Wicket		<8.19.0
Apache Wicket <9.24.0 Apache / Wicket		<9.24.0
Apache Wicket <10.11.0 Apache / Wicket		<10.11.0

CVE-2026-76983

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apache Wicket <8.19.0 Apache / Wicket		<8.19.0
Apache Wicket <9.24.0 Apache / Wicket		<9.24.0
Apache Wicket <10.11.0 Apache / Wicket		<10.11.0

CVE-2026-76984

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apache Wicket <8.19.0 Apache / Wicket		<8.19.0
Apache Wicket <9.24.0 Apache / Wicket		<9.24.0
Apache Wicket <10.11.0 Apache / Wicket		<10.11.0

CVE-2026-76985

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apache Wicket <8.19.0 Apache / Wicket		<8.19.0
Apache Wicket <9.24.0 Apache / Wicket		<9.24.0
Apache Wicket <10.11.0 Apache / Wicket		<10.11.0

CVE-2026-76986

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apache Wicket <8.19.0 Apache / Wicket		<8.19.0
Apache Wicket <9.24.0 Apache / Wicket		<9.24.0
Apache Wicket <10.11.0 Apache / Wicket		<10.11.0

References

14 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://wicket.apache.org/news/2026/08/30/wicket-…	external
https://wicket.apache.org/news/2026/08/30/wicket-…	external
https://wicket.apache.org/news/2026/08/30/wicket-…	external
https://seclists.org/oss-sec/2026/q3/615	external
https://seclists.org/oss-sec/2026/q3/616	external
https://seclists.org/oss-sec/2026/q3/617	external
https://seclists.org/oss-sec/2026/q3/618	external
https://seclists.org/oss-sec/2026/q3/619	external
https://seclists.org/oss-sec/2026/q3/620	external
https://seclists.org/oss-sec/2026/q3/621	external
https://seclists.org/oss-sec/2026/q3/622	external
https://seclists.org/oss-sec/2026/q3/623	external

JSON

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{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Apache Wicket ist ein komponentenbasiertes Web-Framework f\u00fcr die Programmiersprache Java.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Apache Wicket ausnutzen, um Sicherheitsma\u00dfnahmen zu umgehen, Daten zu manipulieren oder offenzulegen oder Cross-Site-Scripting-Angriffe durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX\n- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-3091 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3091.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-3091 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3091"
      },
      {
        "category": "external",
        "summary": "Apache Wicked Release Notes vom 2026-08-30",
        "url": "https://wicket.apache.org/news/2026/08/30/wicket-9.24.0-released.html"
      },
      {
        "category": "external",
        "summary": "Apache Wicked Release Notes vom 2026-08-30",
        "url": "https://wicket.apache.org/news/2026/08/30/wicket-8.19.0-released.html"
      },
      {
        "category": "external",
        "summary": "Apache Wicked Release Notes vom 2026-08-30",
        "url": "https://wicket.apache.org/news/2026/08/30/wicket-10.11.0-released.html"
      },
      {
        "category": "external",
        "summary": "OSS Security Mailing List vom 2026-08-30",
        "url": "https://seclists.org/oss-sec/2026/q3/615"
      },
      {
        "category": "external",
        "summary": "OSS Security Mailing List vom 2026-08-30",
        "url": "https://seclists.org/oss-sec/2026/q3/616"
      },
      {
        "category": "external",
        "summary": "OSS Security Mailing List vom 2026-08-30",
        "url": "https://seclists.org/oss-sec/2026/q3/617"
      },
      {
        "category": "external",
        "summary": "OSS Security Mailing List vom 2026-08-30",
        "url": "https://seclists.org/oss-sec/2026/q3/618"
      },
      {
        "category": "external",
        "summary": "OSS Security Mailing List vom 2026-08-30",
        "url": "https://seclists.org/oss-sec/2026/q3/619"
      },
      {
        "category": "external",
        "summary": "OSS Security Mailing List vom 2026-08-30",
        "url": "https://seclists.org/oss-sec/2026/q3/620"
      },
      {
        "category": "external",
        "summary": "OSS Security Mailing List vom 2026-08-30",
        "url": "https://seclists.org/oss-sec/2026/q3/621"
      },
      {
        "category": "external",
        "summary": "OSS Security Mailing List vom 2026-08-30",
        "url": "https://seclists.org/oss-sec/2026/q3/622"
      },
      {
        "category": "external",
        "summary": "OSS Security Mailing List vom 2026-08-30",
        "url": "https://seclists.org/oss-sec/2026/q3/623"
      }
    ],
    "source_lang": "en-US",
    "title": "Apache Wicket: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-08-31T22:00:00.000+00:00",
      "generator": {
        "date": "2026-09-01T08:08:01.805+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-3091",
      "initial_release_date": "2026-08-30T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-08-30T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-08-31T22:00:00.000+00:00",
          "number": "2",
          "summary": "Referenz(en) aufgenommen: EUVD-2026-68491, EUVD-2026-68490, EUVD-2026-68489, EUVD-2026-68488, EUVD-2026-68486, EUVD-2026-68484, EUVD-2026-68487, EUVD-2026-68516, EUVD-2026-68517"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c9.24.0",
                "product": {
                  "name": "Apache Wicket \u003c9.24.0",
                  "product_id": "T058870"
                }
              },
              {
                "category": "product_version",
                "name": "9.24.0",
                "product": {
                  "name": "Apache Wicket 9.24.0",
                  "product_id": "T058870-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:apache:wicket:9.24.0"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c8.19.0",
                "product": {
                  "name": "Apache Wicket \u003c8.19.0",
                  "product_id": "T058871"
                }
              },
              {
                "category": "product_version",
                "name": "8.19.0",
                "product": {
                  "name": "Apache Wicket 8.19.0",
                  "product_id": "T058871-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:apache:wicket:8.19.0"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c10.11.0",
                "product": {
                  "name": "Apache Wicket \u003c10.11.0",
                  "product_id": "T058872"
                }
              },
              {
                "category": "product_version",
                "name": "10.11.0",
                "product": {
                  "name": "Apache Wicket 10.11.0",
                  "product_id": "T058872-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:apache:wicket:10.11.0"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Wicket"
          }
        ],
        "category": "vendor",
        "name": "Apache"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-70449",
      "product_status": {
        "known_affected": [
          "T058871",
          "T058870",
          "T058872"
        ]
      },
      "release_date": "2026-08-30T22:00:00.000+00:00",
      "title": "CVE-2026-70449"
    },
    {
      "cve": "CVE-2026-71257",
      "product_status": {
        "known_affected": [
          "T058871",
          "T058870",
          "T058872"
        ]
      },
      "release_date": "2026-08-30T22:00:00.000+00:00",
      "title": "CVE-2026-71257"
    },
    {
      "cve": "CVE-2026-71378",
      "product_status": {
        "known_affected": [
          "T058871",
          "T058870",
          "T058872"
        ]
      },
      "release_date": "2026-08-30T22:00:00.000+00:00",
      "title": "CVE-2026-71378"
    },
    {
      "cve": "CVE-2026-75802",
      "product_status": {
        "known_affected": [
          "T058871",
          "T058870",
          "T058872"
        ]
      },
      "release_date": "2026-08-30T22:00:00.000+00:00",
      "title": "CVE-2026-75802"
    },
    {
      "cve": "CVE-2026-76982",
      "product_status": {
        "known_affected": [
          "T058871",
          "T058870",
          "T058872"
        ]
      },
      "release_date": "2026-08-30T22:00:00.000+00:00",
      "title": "CVE-2026-76982"
    },
    {
      "cve": "CVE-2026-76983",
      "product_status": {
        "known_affected": [
          "T058871",
          "T058870",
          "T058872"
        ]
      },
      "release_date": "2026-08-30T22:00:00.000+00:00",
      "title": "CVE-2026-76983"
    },
    {
      "cve": "CVE-2026-76984",
      "product_status": {
        "known_affected": [
          "T058871",
          "T058870",
          "T058872"
        ]
      },
      "release_date": "2026-08-30T22:00:00.000+00:00",
      "title": "CVE-2026-76984"
    },
    {
      "cve": "CVE-2026-76985",
      "product_status": {
        "known_affected": [
          "T058871",
          "T058870",
          "T058872"
        ]
      },
      "release_date": "2026-08-30T22:00:00.000+00:00",
      "title": "CVE-2026-76985"
    },
    {
      "cve": "CVE-2026-76986",
      "product_status": {
        "known_affected": [
          "T058871",
          "T058870",
          "T058872"
        ]
      },
      "release_date": "2026-08-30T22:00:00.000+00:00",
      "title": "CVE-2026-76986"
    }
  ]
}

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

CVE-2026-76986 (GCVE-0-2026-76986)

FKIE_CVE-2026-76986

GHSA-693X-MFGG-48MQ

WID-SEC-W-2026-3091

Tags

Sightings

Nomenclature