CVE-2024-21910
Published: 03 January 2024
Summary
CVE-2024-21910 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Tiny Tinymce. Its CVSS base score is 6.1 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 11.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-2389
Vulnerability details
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.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The XSS vulnerability in TinyMCE allows remote unauthenticated attackers to craft malicious image or link URLs, enabling exploitation of public-facing web applications for arbitrary JavaScript execution in the browser of editing users.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.