pysec-2021-103
Vulnerability from pysec
Wagtail is an open source content management system built on Django. A cross-site scripting vulnerability exists in versions 2.13-2.13.1, versions 2.12-2.12.4, and versions prior to 2.11.8. When the {% include_block %} template tag is used to output the value of a plain-text StreamField block (CharBlock, TextBlock or a similar user-defined block derived from FieldBlock), and that block does not specify a template for rendering, the tag output is not properly escaped as HTML. This could allow users to insert arbitrary HTML or scripting. This vulnerability is only exploitable by users with the ability to author StreamField content (i.e. users with 'editor' access to the Wagtail admin). Patched versions have been released as Wagtail 2.11.8 (for the LTS 2.11 branch), Wagtail 2.12.5, and Wagtail 2.13.2 (for the current 2.13 branch). As a workaround, site implementors who are unable to upgrade to a current supported version should audit their use of {% include_block %} to ensure it is not used to output CharBlock / TextBlock values with no associated template. Note that this only applies where {% include_block %} is used directly on that block (uses of include_block on a block containing a CharBlock / TextBlock, such as a StructBlock, are unaffected). In these cases, the tag can be replaced with Django's {{ ... }} syntax - e.g. {% include_block my_title_block %} becomes {{ my_title_block }}.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "wagtail",
"purl": "pkg:pypi/wagtail"
},
"ranges": [
{
"events": [
{
"introduced": "2.13"
},
{
"fixed": "2.13.2"
},
{
"introduced": "2.12"
},
{
"fixed": "2.12.5"
},
{
"introduced": "0"
},
{
"fixed": "2.11.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1",
"0.2",
"0.3",
"0.3.1",
"0.4",
"0.4.1",
"0.5",
"0.6",
"0.7",
"0.8",
"0.8.1",
"0.8.10",
"0.8.2",
"0.8.3",
"0.8.4",
"0.8.5",
"0.8.6",
"0.8.7",
"0.8.8",
"0.8.9",
"1.0",
"1.0b1",
"1.0b2",
"1.0rc1",
"1.0rc2",
"1.1",
"1.10",
"1.10.1",
"1.10rc1",
"1.11",
"1.11.1",
"1.11rc1",
"1.12",
"1.12.1",
"1.12.2",
"1.12.3",
"1.12.4",
"1.12.5",
"1.12.6",
"1.12rc1",
"1.13",
"1.13.1",
"1.13.2",
"1.13.3",
"1.13.4",
"1.13rc1",
"1.1rc1",
"1.2",
"1.2rc1",
"1.3",
"1.3.1",
"1.3rc1",
"1.4",
"1.4.1",
"1.4.2",
"1.4.3",
"1.4.4",
"1.4.5",
"1.4.6",
"1.4rc1",
"1.5",
"1.5.1",
"1.5.2",
"1.5.3",
"1.5rc1",
"1.6",
"1.6.1",
"1.6.2",
"1.6.3",
"1.6rc1",
"1.7",
"1.7rc1",
"1.8",
"1.8.1",
"1.8.2",
"1.8rc1",
"1.9",
"1.9.1",
"1.9rc1",
"2.0",
"2.0.1",
"2.0.2",
"2.0b1",
"2.0rc1",
"2.1",
"2.1.1",
"2.1.2",
"2.1.3",
"2.10",
"2.10.1",
"2.10.2",
"2.10rc1",
"2.10rc2",
"2.11",
"2.11.1",
"2.11.2",
"2.11.3",
"2.11.4",
"2.11.5",
"2.11.6",
"2.11.7",
"2.11rc1",
"2.12",
"2.12.1",
"2.12.2",
"2.12.3",
"2.12.4",
"2.13",
"2.13.1",
"2.1rc1",
"2.1rc2",
"2.2",
"2.2.1",
"2.2.2",
"2.2rc1",
"2.2rc2",
"2.3",
"2.3rc1",
"2.3rc2",
"2.4",
"2.4rc1",
"2.5",
"2.5.1",
"2.5.2",
"2.5rc1",
"2.6",
"2.6.1",
"2.6.2",
"2.6.3",
"2.6rc1",
"2.7",
"2.7.1",
"2.7.2",
"2.7.3",
"2.7.4",
"2.7rc1",
"2.7rc2",
"2.8",
"2.8.1",
"2.8.2",
"2.8rc1",
"2.9",
"2.9.1",
"2.9.2",
"2.9.3",
"2.9rc1"
]
}
],
"aliases": [
"CVE-2021-32681",
"GHSA-xfrw-hxr5-ghqf"
],
"details": "Wagtail is an open source content management system built on Django. A cross-site scripting vulnerability exists in versions 2.13-2.13.1, versions 2.12-2.12.4, and versions prior to 2.11.8. When the `{% include_block %}` template tag is used to output the value of a plain-text StreamField block (`CharBlock`, `TextBlock` or a similar user-defined block derived from `FieldBlock`), and that block does not specify a template for rendering, the tag output is not properly escaped as HTML. This could allow users to insert arbitrary HTML or scripting. This vulnerability is only exploitable by users with the ability to author StreamField content (i.e. users with \u0027editor\u0027 access to the Wagtail admin). Patched versions have been released as Wagtail 2.11.8 (for the LTS 2.11 branch), Wagtail 2.12.5, and Wagtail 2.13.2 (for the current 2.13 branch). As a workaround, site implementors who are unable to upgrade to a current supported version should audit their use of `{% include_block %}` to ensure it is not used to output `CharBlock` / `TextBlock` values with no associated template. Note that this only applies where `{% include_block %}` is used directly on that block (uses of `include_block` on a block _containing_ a CharBlock / TextBlock, such as a StructBlock, are unaffected). In these cases, the tag can be replaced with Django\u0027s `{{ ... }}` syntax - e.g. `{% include_block my_title_block %}` becomes `{{ my_title_block }}`.",
"id": "PYSEC-2021-103",
"modified": "2021-06-22T04:54:57.540693Z",
"published": "2021-06-17T17:15:00Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/wagtail/wagtail/releases/tag/v2.11.8"
},
{
"type": "WEB",
"url": "https://github.com/wagtail/wagtail/releases/tag/v2.12.5"
},
{
"type": "ADVISORY",
"url": "https://github.com/wagtail/wagtail/security/advisories/GHSA-xfrw-hxr5-ghqf"
},
{
"type": "WEB",
"url": "https://github.com/wagtail/wagtail/releases/tag/v2.13.2"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.