CVE-2024-21908: Cross-site scripting vulnerability in TinyMCE
First published: Fri Oct 22 2021(Updated: )
TinyMCE versions before 5.9.0 are affected by a stored cross-site scripting vulnerability. An unauthenticated and remote attacker could insert crafted HTML into the editor resulting in arbitrary JavaScript execution in another user's browser.
Credit: disclosure@vulncheck.com disclosure@vulncheck.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| npm/tinymce | <5.9.0 | 5.9.0 |
| composer/tinymce/tinymce | <5.9.0 | 5.9.0 |
| nuget/TinyMCE | <5.9.0 | 5.9.0 |
| TinyMCE | <5.9.0 |
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Reference Links
- https://github.com/tinymce/tinymce/security/advisories/GHSA-5h9g-x5rv-25wg
- https://www.tiny.cloud/docs/release-notes/release-notes59/#securityfixes
- https://github.com/advisories/GHSA-5h9g-x5rv-25wg (Advisory)
- https://vulncheck.com/advisories/vc-advisory-GHSA-5h9g-x5rv-25wg
- https://nvd.nist.gov/vuln/detail/CVE-2024-21908
- https://github.com/advisories/GHSA-gjhc-6xm7-mc8q (Advisory)
Frequently Asked Questions
What is the severity of CVE-2024-21908?
CVE-2024-21908 has a high severity due to its potential for arbitrary JavaScript execution via stored cross-site scripting.
How do I fix CVE-2024-21908?
To fix CVE-2024-21908, upgrade TinyMCE to version 5.9.0 or later.
What versions of TinyMCE are affected by CVE-2024-21908?
TinyMCE versions prior to 5.9.0 are affected by CVE-2024-21908.
Can unauthenticated users exploit CVE-2024-21908?
Yes, unauthenticated users can exploit CVE-2024-21908 to insert malicious HTML into the TinyMCE editor.
What type of vulnerability is CVE-2024-21908?
CVE-2024-21908 is a stored cross-site scripting vulnerability.
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