TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp option
The advisory, in context
Impact
A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content extraction code. When using the noneditable_regexp option, specially crafted HTML attributes containing malicious code were able to be executed when content was extracted from the editor.
Patches
This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that, when using the noneditable_regexp option, any content within an attribute is properly verified to match the configured regular expression before being added.
Fix
To avoid this vulnerability:
- Upgrade to TinyMCE 7.2.0 or higher.
- Upgrade to TinyMCE 6.8.4 or higher for TinyMCE 6.x.
- Upgrade to TinyMCE 5.11.0 LTS or higher for TinyMCE 5.x (only available as part of commercial long-term support contract).
References
For more information
If you have any questions or comments about this advisory:
- Email us at infosec@tiny.cloud
- Open an issue in the TinyMCE repo
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
Earlier releases before 5.11.0
Fixed in 5.11.0
View affected-version evidence
{
"ranges": [
{
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{
"introduced": "0"
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"type": "SEMVER"
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"versions": []
}Earlier releases before 5.11.0
Fixed in 5.11.0
182 explicitly affected versions
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, 4.0.0, 4.0.1, 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, 4.0.2, 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, 4.0.4, 4.0.5, 4.0.6, 4.0.8, 4.0.9, 4.1.0, 4.1.1, 4.1.10, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.1.9, 4.2.0, 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, 4.3.10, 4.3.11, 4.3.12, 4.3.13, 4.3.2, 4.3.3, 4.3.4, 4.3.6, 4.3.7, 4.3.8, 4.3.9, 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, 4.7.10, 4.7.11, 4.7.12, 4.7.13, 4.7.3, 4.7.4, 4.7.5, 4.7.6, 4.7.7, 4.7.8, 4.7.9, 4.8.0, 4.8.1, 4.8.2, 4.8.3, 4.8.4, 4.8.5, 4.9.0, 4.9.1, 4.9.10, 4.9.11, 4.9.2, 4.9.3, 4.9.4, 4.9.5, 4.9.6, 4.9.7, 4.9.8, 4.9.9, 5.0.0, 5.0.1, 5.0.10, 5.0.11, 5.0.12, 5.0.13, 5.0.14, 5.0.15, 5.0.16, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 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, 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
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
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],
"type": "ECOSYSTEM"
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"versions": [
"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",
"4.0.0",
"4.0.1",
"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",
"4.0.2",
"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",
"4.0.4",
"4.0.5",
"4.0.6",
"4.0.8",
"4.0.9",
"4.1.0",
"4.1.1",
"4.1.10",
"4.1.2",
"4.1.3",
"4.1.4",
"4.1.5",
"4.1.6",
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"4.1.8",
"4.1.9",
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"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",
"4.3.10",
"4.3.11",
"4.3.12",
"4.3.13",
"4.3.2",
"4.3.3",
"4.3.4",
"4.3.6",
"4.3.7",
"4.3.8",
"4.3.9",
"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",
"4.7.10",
"4.7.11",
"4.7.12",
"4.7.13",
"4.7.3",
"4.7.4",
"4.7.5",
"4.7.6",
"4.7.7",
"4.7.8",
"4.7.9",
"4.8.0",
"4.8.1",
"4.8.2",
"4.8.3",
"4.8.4",
"4.8.5",
"4.9.0",
"4.9.1",
"4.9.10",
"4.9.11",
"4.9.2",
"4.9.3",
"4.9.4",
"4.9.5",
"4.9.6",
"4.9.7",
"4.9.8",
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"5.0.0",
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"5.0.11",
"5.0.12",
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"5.0.3",
"5.0.4",
"5.0.5",
"5.0.6",
"5.0.7",
"5.0.8",
"5.0.9",
"5.1.0",
"5.1.1",
"5.1.2",
"5.1.3",
"5.1.4",
"5.1.5",
"5.1.6",
"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",
"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"
]
}Earlier releases before 5.11.0
Fixed in 5.11.0
173 explicitly affected versions
4.0.0, 4.0.1, 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, 4.0.2, 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, 4.0.3, 4.0.4, 4.0.5, 4.0.6, 4.0.7, 4.0.8, 4.0.9, 4.1.0, 4.1.1, 4.1.10, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.1.9, 4.2.0, 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, 4.3.10, 4.3.11, 4.3.12, 4.3.13, 4.3.2, 4.3.3, 4.3.4, 4.3.6, 4.3.7, 4.3.8, 4.3.9, 4.4.0, 4.4.1, 4.4.2, 4.4.3, 4.5.0, 4.5.1, 4.5.12, 4.5.2, 4.5.3, 4.5.4, 4.5.5, 4.5.6, 4.5.7, 4.5.8, 4.5.9, 4.6.0, 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, 4.7.10, 4.7.11, 4.7.12, 4.7.13, 4.7.2, 4.7.3, 4.7.4, 4.7.5, 4.7.6, 4.7.7, 4.7.8, 4.7.9, 4.8.0, 4.8.1, 4.8.2, 4.8.3, 4.8.4, 4.8.5, 4.9.0, 4.9.1, 4.9.10, 4.9.11, 4.9.2, 4.9.3, 4.9.4, 4.9.5, 4.9.6, 4.9.7, 4.9.8, 4.9.9, 5.0.0, 5.0.1, 5.0.10, 5.0.11, 5.0.12, 5.0.13, 5.0.14, 5.0.15, 5.0.16, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 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, 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
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
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"type": "ECOSYSTEM"
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"versions": [
"4.0.0",
"4.0.1",
"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",
"4.0.2",
"4.0.20",
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"4.0.23",
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"4.0.9",
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"4.1.1",
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"4.2.1",
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"4.2.7",
"4.2.8",
"4.3.0",
"4.3.1",
"4.3.10",
"4.3.11",
"4.3.12",
"4.3.13",
"4.3.2",
"4.3.3",
"4.3.4",
"4.3.6",
"4.3.7",
"4.3.8",
"4.3.9",
"4.4.0",
"4.4.1",
"4.4.2",
"4.4.3",
"4.5.0",
"4.5.1",
"4.5.12",
"4.5.2",
"4.5.3",
"4.5.4",
"4.5.5",
"4.5.6",
"4.5.7",
"4.5.8",
"4.5.9",
"4.6.0",
"4.6.1",
"4.6.2",
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"4.6.4",
"4.6.5",
"4.6.6",
"4.6.7",
"4.7.0",
"4.7.1",
"4.7.10",
"4.7.11",
"4.7.12",
"4.7.13",
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"4.7.4",
"4.7.5",
"4.7.6",
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"4.7.8",
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"4.8.0",
"4.8.1",
"4.8.2",
"4.8.3",
"4.8.4",
"4.8.5",
"4.9.0",
"4.9.1",
"4.9.10",
"4.9.11",
"4.9.2",
"4.9.3",
"4.9.4",
"4.9.5",
"4.9.6",
"4.9.7",
"4.9.8",
"4.9.9",
"5.0.0",
"5.0.1",
"5.0.10",
"5.0.11",
"5.0.12",
"5.0.13",
"5.0.14",
"5.0.15",
"5.0.16",
"5.0.2",
"5.0.3",
"5.0.4",
"5.0.5",
"5.0.6",
"5.0.7",
"5.0.8",
"5.0.9",
"5.1.0",
"5.1.1",
"5.1.2",
"5.1.3",
"5.1.4",
"5.1.5",
"5.1.6",
"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",
"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"
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}From 6.0.0 before 6.8.4
Fixed in 6.8.4
View affected-version evidence
{
"ranges": [
{
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{
"introduced": "6.0.0"
},
{
"fixed": "6.8.4"
}
],
"type": "SEMVER"
}
],
"versions": []
}From 7.0.0 before 7.2.0
Fixed in 7.2.0
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.2.0"
}
],
"type": "SEMVER"
}
],
"versions": []
}From 6.0.0 before 6.8.4
Fixed in 6.8.4
25 explicitly affected versions
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, 6.8.1, 6.8.2, 6.8.3
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.8.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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",
"6.8.1",
"6.8.2",
"6.8.3"
]
}From 7.0.0 before 7.2.0
Fixed in 7.2.0
5 explicitly affected versions
7.0.0, 7.0.1, 7.1.0, 7.1.1, 7.1.2
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.2.0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.0.0",
"7.0.1",
"7.1.0",
"7.1.1",
"7.1.2"
]
}From 6.0.0 before 6.8.4
Fixed in 6.8.4
27 explicitly affected versions
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, 6.8.1, 6.8.2, 6.8.3
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.8.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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",
"6.8.1",
"6.8.2",
"6.8.3"
]
}From 7.0.0 before 7.2.0
Fixed in 7.2.0
5 explicitly affected versions
7.0.0, 7.0.1, 7.1.0, 7.1.1, 7.1.2
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.2.0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.0.0",
"7.0.1",
"7.1.0",
"7.1.1",
"7.1.2"
]
}Earlier releases before 4.1.0
Fixed in 4.1.0
51 explicitly affected versions
1.0, 1.1, 1.2, 1.3, 1.4, 1.4.1, 1.5, 1.5.1, 1.5.1.dev100, 1.5.1.dev101, 1.5.1a1, 1.5.1a2, 1.5.1a3, 1.5.1b1, 1.5.1b2, 1.5.1b3, 1.5.1b4, 1.5.2, 1.5.3, 1.5.4, 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7, 2.1.0, 2.2.0, 2.3.0, 2.4.0, 2.5.0, 2.6.0, 2.6.1, 2.7.0, 2.7.1, 2.8.0, 2.9.0, 3.0.1, 3.0.2, 3.1.0, 3.2.0, 3.3.0, 3.4.0, 3.5.0, 3.6.0, 3.6.1, 3.7.0, 3.7.1, 4.0.0
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.1.0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0",
"1.1",
"1.2",
"1.3",
"1.4",
"1.4.1",
"1.5",
"1.5.1",
"1.5.1.dev100",
"1.5.1.dev101",
"1.5.1a1",
"1.5.1a2",
"1.5.1a3",
"1.5.1b1",
"1.5.1b2",
"1.5.1b3",
"1.5.1b4",
"1.5.2",
"1.5.3",
"1.5.4",
"2.0.0",
"2.0.1",
"2.0.2",
"2.0.3",
"2.0.4",
"2.0.5",
"2.0.6",
"2.0.7",
"2.1.0",
"2.2.0",
"2.3.0",
"2.4.0",
"2.5.0",
"2.6.0",
"2.6.1",
"2.7.0",
"2.7.1",
"2.8.0",
"2.9.0",
"3.0.1",
"3.0.2",
"3.1.0",
"3.2.0",
"3.3.0",
"3.4.0",
"3.5.0",
"3.6.0",
"3.6.1",
"3.7.0",
"3.7.1",
"4.0.0"
]
}References
- https://github.com/tinymce/tinymce/security/advisories/GHSA-9hcv-j9pv-qmph
- https://nvd.nist.gov/vuln/detail/CVE-2024-38356
- https://github.com/tinymce/tinymce/commit/5acb741665a98e83d62b91713c800abbff43b00d
- https://github.com/tinymce/tinymce/commit/a9fb858509f86dacfa8b01cfd34653b408983ac0
- https://github.com/tinymce/tinymce
- https://owasp.org/www-community/attacks/xss
- https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#overview
- https://www.tiny.cloud/docs/tinymce/7/7.2-release-notes/#overview
- https://www.tiny.cloud/docs/tinymce/latest/7.2-release-notes/#overview