CVE-2026-7429
SSCMS v7.4.0 contains a reflected cross-site scripting vulnerability in the STL processing endpoint that allows attackers to execute arbitrary JavaScript by crafting malicious STL template payloads that are decrypted and returned without proper sanitization. Attackers can exploit improper output encoding in the /api/stl/actions/dynamic endpoint to inject executable JavaScript into JSON responses, leading to session hijacking, phishing attacks, and unauthorized actions performed on behalf of users.
Published:Apr 30, 2026
Last Modified:Jul 28, 2026
EPS:Apr 30, 2026
EPSS Score:0.00165
CVSS Score:4.6
Affected Products
Vendor
Product
Action
Vendor
Siteserver
Product
Sscms
Siteserver
Sscms
Vendor
Sscms
Product
Sscms
Sscms
Sscms
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
