Answer in brief
CVE-2024-21910 records a Medium severity (CVSS 6.1) vulnerability in Cross-site scripting vulnerability in TinyMCE plugins. The current sources do not mark it as known exploited. The current feed maps TinyMCE (generic), tinymce (npm), TinyMCE (nuget), tinymce/tinymce (packagist) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps TinyMCE (generic), tinymce (npm), TinyMCE (nuget), tinymce/tinymce (packagist) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| TinyMCEgeneric | >=0 <5.10.0 | 5.10.0 |
| tinymcenpm | >=0 <5.10.0 | 5.10.0 |
| TinyMCEnuget | >=0 <5.10.0 | 5.10.0 |
| tinymce/tinymcepackagist | >=0 <5.10.0 | 5.10.0 |
| django-tinymcepypi | >=0 <3.4.0 | 3.4.0 |
Published upstream
Jan 3, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 8, 2026
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.
Quoted source text, attributed separately from HOL analysis.