Vulnerability · Published Feb 19, 2025 · Assigned by jpcert
CVE-2025-24841
Medium 5.4
In plain English
A medium-severity cross-site scripting in Movable Type (8.0.x series) from Six Apart Ltd.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.0)5.4Medium
Exploit odds (30 days)0.2%top 86.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Movable Type contains a stored cross-site scripting vulnerability in the HTML edit mode of MT Block Editor. It is exploitable when TinyMCE6 is used as a rich text editor and an arbitrary script may be executed on a logged-in user's web browser.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Six Apart Ltd. | Movable Type (8.4.x series) | 8.4.1 and earlier |
| Six Apart Ltd. | Movable Type (8.0.x series) | 8.0.5 and earlier |
| Six Apart Ltd. | Movable Type Advanced (8.4.x series) | 8.4.1 and earlier |
| Six Apart Ltd. | Movable Type Advanced (8.0.x series) | 8.0.5 and earlier |
| Six Apart Ltd. | Movable Type Premium (2.x series) | 2.06 and earlier |
| Six Apart Ltd. | Movable Type Premium (Advanced Edition) (2.x series) | 2.06 and earlier |
| Six Apart Ltd. | Movable Type Cloud Edition (8.x series) | 8.4.1 and earlier |
| Six Apart Ltd. | Movable Type Premium Cloud Edition (2.x series) | 2.06 and earlier |
Weakness: CWE-79 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N