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Vulnerability details: VCID-yntm-bkwg-nkb9
Vulnerability ID VCID-yntm-bkwg-nkb9
Aliases CVE-2024-21910
GHSA-r8hm-w5f7-wj39
GMS-2021-133
GMS-2021-164
GMS-2021-192
GMS-2021-8
Summary TinyMCE versions before 5.10.0 are affected by a cross-site scripting vulnerability. A remote and unauthenticated attacker could introduce crafted image or link URLs that would result in the execution of arbitrary JavaScript in an editing user's browser.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-64 Windows Shortcut Following (.LNK)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.04084 https://api.first.org/data/v1/epss?cve=CVE-2024-21910
cvssv3.1 6.1 https://github.com/advisories/GHSA-r8hm-w5f7-wj39
ssvc Track https://github.com/advisories/GHSA-r8hm-w5f7-wj39
cvssv3.1 6.1 https://github.com/jazzband/django-tinymce/issues/366
generic_textual MODERATE https://github.com/jazzband/django-tinymce/issues/366
ssvc Track https://github.com/jazzband/django-tinymce/issues/366
cvssv3.1 6.1 https://github.com/jazzband/django-tinymce/releases/tag/3.4.0
generic_textual MODERATE https://github.com/jazzband/django-tinymce/releases/tag/3.4.0
ssvc Track https://github.com/jazzband/django-tinymce/releases/tag/3.4.0
cvssv3.1 6.1 https://github.com/tinymce/tinymce
generic_textual MODERATE https://github.com/tinymce/tinymce
cvssv3.1 6.1 https://github.com/tinymce/tinymce/security/advisories/GHSA-r8hm-w5f7-wj39
generic_textual MODERATE https://github.com/tinymce/tinymce/security/advisories/GHSA-r8hm-w5f7-wj39
ssvc Track https://github.com/tinymce/tinymce/security/advisories/GHSA-r8hm-w5f7-wj39
cvssv3.1 6.1 https://pypi.org/project/django-tinymce/3.4.0
generic_textual MODERATE https://pypi.org/project/django-tinymce/3.4.0
cvssv3.1 6.1 https://pypi.org/project/django-tinymce/3.4.0/
ssvc Track https://pypi.org/project/django-tinymce/3.4.0/
cvssv3.1 6.1 https://vulncheck.com/advisories/vc-advisory-GHSA-r8hm-w5f7-wj39
ssvc Track https://vulncheck.com/advisories/vc-advisory-GHSA-r8hm-w5f7-wj39
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2024-21910
https://github.com/tinymce/tinymce
https://pypi.org/project/django-tinymce/3.4.0
3.4.0 https://github.com/jazzband/django-tinymce/releases/tag/3.4.0
3.4.0 https://pypi.org/project/django-tinymce/3.4.0/
366 https://github.com/jazzband/django-tinymce/issues/366
GHSA-r8hm-w5f7-wj39 https://github.com/advisories/GHSA-r8hm-w5f7-wj39
GHSA-r8hm-w5f7-wj39 https://github.com/tinymce/tinymce/security/advisories/GHSA-r8hm-w5f7-wj39
vc-advisory-GHSA-r8hm-w5f7-wj39 https://vulncheck.com/advisories/vc-advisory-GHSA-r8hm-w5f7-wj39
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/advisories/GHSA-r8hm-w5f7-wj39
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-01-09T20:43:59Z/ Found at https://github.com/advisories/GHSA-r8hm-w5f7-wj39
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/jazzband/django-tinymce/issues/366
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-01-09T20:43:59Z/ Found at https://github.com/jazzband/django-tinymce/issues/366
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/jazzband/django-tinymce/releases/tag/3.4.0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-01-09T20:43:59Z/ Found at https://github.com/jazzband/django-tinymce/releases/tag/3.4.0
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/tinymce/tinymce
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/tinymce/tinymce/security/advisories/GHSA-r8hm-w5f7-wj39
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-01-09T20:43:59Z/ Found at https://github.com/tinymce/tinymce/security/advisories/GHSA-r8hm-w5f7-wj39
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://pypi.org/project/django-tinymce/3.4.0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://pypi.org/project/django-tinymce/3.4.0/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-01-09T20:43:59Z/ Found at https://pypi.org/project/django-tinymce/3.4.0/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://vulncheck.com/advisories/vc-advisory-GHSA-r8hm-w5f7-wj39
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

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none

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none

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none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-01-09T20:43:59Z/ Found at https://vulncheck.com/advisories/vc-advisory-GHSA-r8hm-w5f7-wj39
Exploit Prediction Scoring System (EPSS)
Percentile 0.88821
EPSS Score 0.04084
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-10T18:39:00.117622+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2024/21xxx/CVE-2024-21910.json 38.6.0