GHSA-438c-3975-5x3f

Suggest an improvement
Source
https://github.com/advisories/GHSA-438c-3975-5x3f
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/03/GHSA-438c-3975-5x3f/GHSA-438c-3975-5x3f.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-438c-3975-5x3f
Aliases
Published
2024-03-26T21:23:47Z
Modified
2024-03-28T13:31:23.180331Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N CVSS Calculator
Summary
TinyMCE Cross-Site Scripting (XSS) vulnerability in handling iframes
Details

Impact

A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content insertion code. This allowed iframe elements containing malicious code to execute when inserted into the editor. These iframe elements are restricted in their permissions by same-origin browser protections, but could still trigger operations such as downloading of malicious assets.

Fix

TinyMCE 6.8.1 introduced a new sandbox_iframes boolean option which adds the sandbox="" attribute to every iframe element by default when enabled. This will prevent cross-origin, and in special cases same-origin, XSS by embedded resources in iframe elements. From TinyMCE 7.0.0 onwards the default value of this option is true.

In TinyMCE 7.0.0 a new sandbox_iframes_exclusions option was also added, allowing a list of domains to be specified that should be excluded from having the sandbox="" attribute applied when the sandbox_iframes option is enabled. By default, this option is set to an array of domains that are provided in embed code by popular websites. To sandbox iframe elements from every domain, set this option to [].

Workarounds

The HTTP Content-Security-Policy (CSP) frame-src or object-src can be configured to restrict or block the loading of unauthorized URLS. Refer to the TinyMCE Content Security Policy Guide.

References

Database specific 
{
    "nvd_published_at": "2024-03-26T14:15:08Z",
    "cwe_ids": [
        "CWE-79"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2024-03-26T21:23:47Z"
}
References

Affected packages

npm / tinymce

Package

Name
tinymce
View open source insights on deps.dev
Purl
pkg:npm/tinymce

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.1

NuGet / TinyMCE

Package

Name
TinyMCE
View open source insights on deps.dev
Purl
pkg:nuget/TinyMCE

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.1

Affected versions

3.*

3.4.3.2
3.4.4
3.4.5
3.4.7
3.5.0
3.5.0.1
3.5.1
3.5.1.1
3.5.2
3.5.3
3.5.4
3.5.4.1
3.5.5
3.5.6
3.5.7
3.5.8

4.*

4.0.0
4.0.1
4.0.2
4.0.4
4.0.5
4.0.6
4.0.8
4.0.9
4.0.10
4.0.11
4.0.13
4.0.14
4.0.15
4.0.16
4.0.17
4.0.18
4.0.19
4.0.20
4.0.21
4.0.22
4.0.23
4.0.24
4.0.25
4.0.26
4.0.27
4.0.28
4.1.0
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.1.7
4.1.8
4.1.9
4.1.10
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.3.0
4.3.1
4.3.2
4.3.3
4.3.4
4.3.6
4.3.7
4.3.8
4.3.9
4.3.10
4.3.11
4.3.12
4.3.13
4.4.0
4.4.1
4.4.2
4.4.3
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.7
4.5.8
4.6.0
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
4.6.6
4.6.7
4.7.0
4.7.3
4.7.4
4.7.5
4.7.6
4.7.7
4.7.8
4.7.9
4.7.10
4.7.11
4.7.12
4.7.13
4.8.0
4.8.1
4.8.2
4.8.3
4.8.4
4.8.5
4.9.0
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
4.9.6
4.9.7
4.9.8
4.9.9
4.9.10
4.9.11

5.*

5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.0.7
5.0.8
5.0.9
5.0.10
5.0.11
5.0.12
5.0.13
5.0.14
5.0.15
5.0.16
5.1.0
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.2.0
5.2.1
5.2.2
5.3.0
5.3.1
5.3.2
5.4.0
5.4.1
5.4.2
5.5.0
5.5.1
5.6.0
5.6.1
5.6.2
5.7.0
5.7.1
5.8.0
5.8.1
5.8.2
5.9.0
5.9.1
5.9.2
5.10.0
5.10.1
5.10.2
5.10.3
5.10.4
5.10.5
5.10.6
5.10.7
5.10.8
5.10.9

6.*

6.0.0
6.0.1
6.0.2
6.0.3
6.1.0
6.1.1
6.1.2
6.2.0
6.3.0
6.3.1
6.3.2
6.4.0
6.4.1
6.4.2
6.5.0
6.5.1
6.6.2
6.7.0
6.7.1
6.7.2
6.7.3
6.8.0

Packagist / tinymce/tinymce

Package

Name
tinymce/tinymce
Purl
pkg:composer/tinymce/tinymce

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.1

Affected versions

4.*

4.0.0
4.0.1
4.0.2
4.0.3
4.0.4
4.0.5
4.0.6
4.0.7
4.0.8
4.0.9
4.0.10
4.0.11
4.0.12
4.0.13
4.0.14
4.0.15
4.0.16
4.0.17
4.0.18
4.0.19
4.0.20
4.0.21
4.0.22
4.0.23
4.0.24
4.0.25
4.0.26
4.0.27
4.0.28
4.1.0
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.1.7
4.1.8
4.1.9
4.1.10
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.3.0
4.3.1
4.3.2
4.3.3
4.3.4
4.3.6
4.3.7
4.3.8
4.3.9
4.3.10
4.3.11
4.3.12
4.3.13
4.4.0
4.4.1
4.4.2
4.4.3
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.7
4.5.8
4.5.9
4.5.12
4.6.0
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
4.6.6
4.6.7
4.7.0
4.7.1
4.7.2
4.7.3
4.7.4
4.7.5
4.7.6
4.7.7
4.7.8
4.7.9
4.7.10
4.7.11
4.7.12
4.7.13
4.8.0
4.8.1
4.8.2
4.8.3
4.8.4
4.8.5
4.9.0
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
4.9.6
4.9.7
4.9.8
4.9.9
4.9.10
4.9.11

5.*

5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.0.7
5.0.8
5.0.9
5.0.10
5.0.11
5.0.12
5.0.13
5.0.14
5.0.15
5.0.16
5.1.0
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.2.0
5.2.1
5.2.2
5.3.0
5.3.1
5.3.2
5.4.0
5.4.1
5.4.2
5.5.0
5.5.1
5.6.0
5.6.1
5.6.2
5.7.0
5.7.1
5.8.0
5.8.1
5.8.2
5.9.0
5.9.1
5.9.2
5.10.0
5.10.1
5.10.2
5.10.3
5.10.4
5.10.5
5.10.6
5.10.7
5.10.8
5.10.9

6.*

6.0.0
6.0.1
6.0.2
6.0.3
6.1.0
6.1.1
6.1.2
6.2.0
6.3.0
6.3.1
6.3.2
6.4.0
6.4.1
6.4.2
6.5.0
6.5.1
6.6.0
6.6.1
6.6.2
6.7.0
6.7.1
6.7.2
6.7.3
6.8.0