CVE-2024-21908: Cross-site scripting vulnerability in TinyMCE

6.1 CVSS

Description

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.

Classification

CVE ID: CVE-2024-21908

CVSS Base Severity: MEDIUM

CVSS Base Score: 6.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem Types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Vendor:

Product:

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.27% (probability of being exploited)

EPSS Percentile: 50.17% (scored less or equal to compared to others)

EPSS Date: 2025-05-01 (when was this score calculated)

Stakeholder-Specific Vulnerability Categorization (SSVC)

SSVC Exploitation: none

SSVC Technical Impact: partial

SSVC Automatable: false

References

https://nvd.nist.gov/vuln/detail/CVE-2024-21908
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
https://vulncheck.com/advisories/vc-advisory-GHSA-5h9g-x5rv-25wg

Timeline