CVE-2025-54856 describes a stored cross-site scripting (XSS) vulnerability in Movable Type's Edit ContentData page. An attacker with "ContentType Management" privileges can inject malicious scripts, which will execute in the web browser of any user accessing that page. This vulnerability has a CVSS score of 4.8 (Medium), indicating a network-based attack with low complexity, requiring high privileges and user interaction, leading to low impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Six Apart Ltd. | Movable Type (Cloud Edition) | 7 r.5509 (7 series), 8.7.0 (8 series)CNA affected | |
| Six Apart Ltd. | Movable Type (Software Edition) | 7 r.5509 and earlier (7 series), 8.0.0 to 8.0.7 (8.0 series), 8.4.0 to 8.4.3 (8.4 series)CNA affected | |
| Six Apart Ltd. | Movable Type Advanced (Software Edition) | 7 r.5509 and earlier (7 series), 8.0.0 to 8.0.7 (8.0 series), 8.4.0 to 8.4.3 (8.4 series)CNA affected | |
| Six Apart Ltd. | Movable Type Premium (Advanced Edition) (Software Edition) | 1.67 and earlier (1 series), 2.10 and earlier (2 series)CNA affected | |
| Six Apart Ltd. | Movable Type Premium (Cloud Edition) | 1.67 (1 series), 2.10 (2 series)CNA affected |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.