XSS in Tiny Tinymce
CVE-2024-21911
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (66.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/tinymce/tinymce/security/advisories/GHSA-w7jx-j77m-wp65 (Exploit, vendor-advisory, Third Party Advisory)
- www.npmjs.com/package/tinymce (related, Release Notes)
- www.tiny.cloud/docs/release-notes/release-notes56/ (related, Release Notes)
- github.com/advisories/GHSA-w7jx-j77m-wp65 (vendor-advisory, Exploit, Third Party Advisory, third-party-advisory)
- vulncheck.com/advisories/vc-advisory-GHSA-w7jx-j77m-wp65 (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2024-21911?
- CVE-2024-21911 is a medium-severity vulnerability in Tiny Tinymce, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-01-03.
- How severe is CVE-2024-21911?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2024-21911 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.