Vulnerability-Lookup

CVE-2026-28222 (GCVE-0-2026-28222)

Vulnerability from cvelistv5 – Published: 2026-03-05 18:58 – Updated: 2026-03-06 18:05

Title

Wagtail: Improper escaping of HTML (Cross-site Scripting) on TableBlock class attributes

Summary

Wagtail is an open source content management system built on Django. Prior to versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1, a stored cross-site scripting (XSS) vulnerability exists on rendering TableBlock blocks within a StreamField. A user with access to create or edit pages containing TableBlock StreamField blocks is able to set specially-crafted class attributes on the block which run arbitrary JavaScript code when the page is viewed. When viewed by a user with higher privileges, this could lead to performing actions with that user's credentials. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin, and only affects sites using TableBlock. This issue has been patched in versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1.

Severity ?

6.1 (Medium)


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

CWE

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

Assigner

GitHub_M

References

URL

Tags

	https://github.com/wagtail/wagtail/security/advis…	x_refsource_CONFIRM
	https://github.com/wagtail/wagtail/commit/0375094…	x_refsource_MISC
	https://github.com/wagtail/wagtail/commit/4620423…	x_refsource_MISC
	https://github.com/wagtail/wagtail/commit/575c0d7…	x_refsource_MISC
	https://github.com/wagtail/wagtail/commit/605a556…	x_refsource_MISC
	https://github.com/wagtail/wagtail/releases/tag/v6.3.8	x_refsource_MISC
	https://github.com/wagtail/wagtail/releases/tag/v7.0.6	x_refsource_MISC
	https://github.com/wagtail/wagtail/releases/tag/v7.2.3	x_refsource_MISC
	https://github.com/wagtail/wagtail/releases/tag/v7.3.1	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	wagtail	wagtail	Affected: < 6.3.8 Affected: >= 6.4rc1, < 7.0.6 Affected: >= 7.1rc1, < 7.2.3 Affected: >= 7.3rc1, < 7.3.1

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GHSA-P5CM-246W-84JM

Vulnerability from github – Published: 2026-03-03 17:57 – Updated: 2026-03-05 22:49

Summary

Wagtail Vulnerable to Cross-site Scripting in TableBlock class attributes

Details

Impact

A stored Cross-site Scripting (XSS) vulnerability exists on rendering TableBlock blocks within a StreamField. A user with access to create or edit pages containing TableBlock StreamField blocks is able to set specially-crafted class attributes on the block which run arbitrary JavaScript code when the page is viewed. When viewed by a user with higher privileges, this could lead to performing actions with that user's credentials. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin, and only affects sites using TableBlock.

Patches

Patched versions have been released as Wagtail 6.3.8, 7.0.6, 7.2.3 and 7.3.1.

Workarounds

Site owners who are unable to upgrade to the new versions can remediate the vulnerability by setting a template attribute on all TableBlock definitions, referencing a template that does not output class attributes. For example:

<!-- For use with TableBlock(template="path/to/table_block.html") -->
<table>
    {% if table_caption %}
        <caption>{{ table_caption }}</caption>
    {% endif %}
    {% if table_header %}
        <thead>
            <tr>
                {% for cell in table_header %}
                    <th scope="col">{{ cell }}</th>
                {% endfor %}
            </tr>
        </thead>
    {% endif %}
    <tbody>
        {% for row in data %}
            <tr>
                {% for cell in row %}
                    {% if first_col_is_header and forloop.first %}
                        <th scope="row">{{ cell }}</th>
                    {% else %}
                        <td>{{ cell }}</td>
                    {% endif %}
                {% endfor %}
            </tr>
        {% endfor %}
    </tbody>
</table>

Acknowledgements

Many thanks to Guan Chenxian (@GCXWLP) for reporting this issue.

For more information

If there are any questions or comments about this advisory:

Visit Wagtail's support channels
Email Wagtail at security@wagtail.org (view the security policy for more information).

Severity ?

6.1 (Medium)


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

Show details on source website

JSON

To clipboard

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      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.3rc1"
            },
            {
              "fixed": "7.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-28222"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-03T17:57:18Z",
    "nvd_published_at": "2026-03-05T20:16:15Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nA stored Cross-site Scripting (XSS) vulnerability exists on rendering `TableBlock` blocks within a StreamField. A user with access to create or edit pages containing `TableBlock` StreamField blocks is able to set specially-crafted `class` attributes on the block which run arbitrary JavaScript code when the page is viewed. When viewed by a user with higher privileges, this could lead to performing actions with that user\u0027s credentials. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin, and only affects sites using TableBlock.\n\n### Patches\nPatched versions have been released as Wagtail 6.3.8, 7.0.6, 7.2.3 and 7.3.1.\n\n### Workarounds\nSite owners who are unable to upgrade to the new versions can remediate the vulnerability by setting a `template` attribute on all TableBlock definitions, referencing a template that does not output `class` attributes. For example:\n\n```django\n\u003c!-- For use with TableBlock(template=\"path/to/table_block.html\") --\u003e\n\u003ctable\u003e\n    {% if table_caption %}\n        \u003ccaption\u003e{{ table_caption }}\u003c/caption\u003e\n    {% endif %}\n    {% if table_header %}\n        \u003cthead\u003e\n            \u003ctr\u003e\n                {% for cell in table_header %}\n                    \u003cth scope=\"col\"\u003e{{ cell }}\u003c/th\u003e\n                {% endfor %}\n            \u003c/tr\u003e\n        \u003c/thead\u003e\n    {% endif %}\n    \u003ctbody\u003e\n        {% for row in data %}\n            \u003ctr\u003e\n                {% for cell in row %}\n                    {% if first_col_is_header and forloop.first %}\n                        \u003cth scope=\"row\"\u003e{{ cell }}\u003c/th\u003e\n                    {% else %}\n                        \u003ctd\u003e{{ cell }}\u003c/td\u003e\n                    {% endif %}\n                {% endfor %}\n            \u003c/tr\u003e\n        {% endfor %}\n    \u003c/tbody\u003e\n\u003c/table\u003e\n```\n\n### Acknowledgements\n\nMany thanks to Guan Chenxian (@GCXWLP) for reporting this issue.\n\n### For more information\n\nIf there are any questions or comments about this advisory:\n\n- Visit Wagtail\u0027s [support channels](https://docs.wagtail.io/en/stable/support.html)\n- Email Wagtail at [security@wagtail.org](mailto:security@wagtail.org) (view the [security policy](https://github.com/wagtail/wagtail/security/policy) for more information).",
  "id": "GHSA-p5cm-246w-84jm",
  "modified": "2026-03-05T22:49:01Z",
  "published": "2026-03-03T17:57:18Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/security/advisories/GHSA-p5cm-246w-84jm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28222"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/commit/0375094bb57ce6e527005c2bb2e871dd20bca04d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/commit/4620423cb22c5253391a0f04178089c1162f6e2e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/commit/575c0d7c18c7716ed73f7a3c2720ad75956f0a85"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/commit/605a5569686565e035313222e1bc2f9802fbc55b"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/wagtail/wagtail"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/releases/tag/v6.3.8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/releases/tag/v7.0.6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/releases/tag/v7.2.3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wagtail/wagtail/releases/tag/v7.3.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Wagtail Vulnerable to Cross-site Scripting in TableBlock class attributes"
}

FKIE_CVE-2026-28222

Vulnerability from fkie_nvd - Published: 2026-03-05 20:16 - Updated: 2026-03-09 20:54

Severity ?

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

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/wagtail/wagtail/commit/0375094bb57ce6e527005c2bb2e871dd20bca04d	Patch
security-advisories@github.com	https://github.com/wagtail/wagtail/commit/4620423cb22c5253391a0f04178089c1162f6e2e	Patch
security-advisories@github.com	https://github.com/wagtail/wagtail/commit/575c0d7c18c7716ed73f7a3c2720ad75956f0a85	Patch
security-advisories@github.com	https://github.com/wagtail/wagtail/commit/605a5569686565e035313222e1bc2f9802fbc55b	Patch
security-advisories@github.com	https://github.com/wagtail/wagtail/releases/tag/v6.3.8	Product, Release Notes
security-advisories@github.com	https://github.com/wagtail/wagtail/releases/tag/v7.0.6	Product, Release Notes
security-advisories@github.com	https://github.com/wagtail/wagtail/releases/tag/v7.2.3	Product, Release Notes
security-advisories@github.com	https://github.com/wagtail/wagtail/releases/tag/v7.3.1	Product, Release Notes
security-advisories@github.com	https://github.com/wagtail/wagtail/security/advisories/GHSA-p5cm-246w-84jm	Mitigation, Vendor Advisory

Impacted products

Vendor	Product	Version
torchbox	wagtail	*
torchbox	wagtail	*
torchbox	wagtail	*
torchbox	wagtail	7.3
torchbox	wagtail	7.3

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:torchbox:wagtail:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F649E022-3713-4AF4-864F-D19BC4DE9480",
              "versionEndExcluding": "6.3.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:torchbox:wagtail:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BC322B0E-ECBA-42DB-B913-1E284B94E77F",
              "versionEndExcluding": "7.0.6",
              "versionStartIncluding": "6.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:torchbox:wagtail:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5AFA62D9-1805-4F6F-B903-A819AB6A8D45",
              "versionEndExcluding": "7.2.3",
              "versionStartIncluding": "7.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:torchbox:wagtail:7.3:-:*:*:*:*:*:*",
              "matchCriteriaId": "30656B21-90B6-4B64-90F7-F4D1768E99DE",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:torchbox:wagtail:7.3:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "85851799-940D-4D01-98DA-15ECF3E8B151",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wagtail is an open source content management system built on Django. Prior to versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1, a stored cross-site scripting (XSS) vulnerability exists on rendering TableBlock blocks within a StreamField. A user with access to create or edit pages containing TableBlock StreamField blocks is able to set specially-crafted class attributes on the block which run arbitrary JavaScript code when the page is viewed. When viewed by a user with higher privileges, this could lead to performing actions with that user\u0027s credentials. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin, and only affects sites using TableBlock. This issue has been patched in versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1."
    },
    {
      "lang": "es",
      "value": "Wagtail es un sistema de gesti\u00f3n de contenido de c\u00f3digo abierto construido sobre Django. Antes de las versiones 6.3.8, 7.0.6, 7.2.3 y 7.3.1, existe una vulnerabilidad de cross-site scripting (XSS) almacenado al renderizar bloques TableBlock dentro de un StreamField. Un usuario con acceso para crear o editar p\u00e1ginas que contengan bloques TableBlock de StreamField puede establecer atributos de clase especialmente dise\u00f1ados en el bloque que ejecutan c\u00f3digo JavaScript arbitrario cuando se visualiza la p\u00e1gina. Cuando es visualizado por un usuario con privilegios m\u00e1s altos, esto podr\u00eda llevar a realizar acciones con las credenciales de ese usuario. La vulnerabilidad no es explotable por un visitante de sitio ordinario sin acceso al administrador de Wagtail, y solo afecta a los sitios que utilizan TableBlock. Este problema ha sido parcheado en las versiones 6.3.8, 7.0.6, 7.2.3 y 7.3.1."
    }
  ],
  "id": "CVE-2026-28222",
  "lastModified": "2026-03-09T20:54:53.927",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 0.9,
        "impactScore": 5.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-05T20:16:15.277",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
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      ],
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      "source": "security-advisories@github.com",
      "tags": [
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    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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    {
      "source": "security-advisories@github.com",
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    },
    {
      "source": "security-advisories@github.com",
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    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/wagtail/wagtail/releases/tag/v7.0.6"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/wagtail/wagtail/releases/tag/v7.2.3"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/wagtail/wagtail/releases/tag/v7.3.1"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/wagtail/wagtail/security/advisories/GHSA-p5cm-246w-84jm"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2026-28222 (GCVE-0-2026-28222)

GHSA-P5CM-246W-84JM

Impact

Patches

Workarounds

Acknowledgements

For more information

FKIE_CVE-2026-28222

Tags

Sightings

Nomenclature