CVE-2024-21911 json
Cross-site scripting vulnerability in TinyMCE
published 5y ago modified 3d ago also EUVD-2021-0519 , GHSA-w7jx-j77m-wp65
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
TinyMCE versions before 5.6.0 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.
Patch / fix
- npm tinymce 5.6.0
- nuget TinyMCE 5.6.0
- packagist tinymce/tinymce 5.6.0
- nuget TinyMCE 5.6.0
Is CVE-2024-21911 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2y ago
Exploit prediction
1.17% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- github.com https://github.com/tinymce/tinymce/security/advisories/GHSA-w7jx-j77m-wp65 referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/advisories/GHSA-w7jx-j77m-wp65 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | tinymce | <5.6.0 |
5.6.0 |
| nuget | TinyMCE | <5.6.0 |
5.6.0 |
| packagist | tinymce/tinymce | <5.6.0 |
5.6.0 |
Affected products
- nuget TinyMCE
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/tinymce/tinymce/security/advisories/GHSA-w7jx-j77m-wp65
vendor-advisory, web, exploit, third-party-advisory
-
github.com
/advisories/GHSA-w7jx-j77m-wp65
vendor-advisory, third-party-advisory, exploit
-
npmjs.com
/package/tinymce
related, web, release-notes
-
tiny.cloud
/docs/release-notes/release-notes56/#securityfixes
related, web, release-notes
-
vulncheck.com
/advisories/vc-advisory-GHSA-w7jx-j77m-wp65
third-party-advisory
Sources
- CVE List CVE-2024-21911
- GitHub Advisory GHSA-w7jx-j77m-wp65
- NVD CVE-2024-21911
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.