High severity · published Apr 30, 2026
CVE-2026-7435
SSCMS v7.4.0 SQL Injection via stl:sqlContent queryString
7.2
CVSS
0.5%
EPSS
No
On KEV
Description
SSCMS v7.4.0 contains a SQL injection vulnerability in the stl:sqlContent tag where the queryString attribute is passed directly to database execution without parameterization or sanitization. Attackers can craft encrypted payloads submitted to the /api/stl/actions/dynamic endpoint to execute arbitrary SQL statements, leading to unauthorized database access, data disclosure, authentication bypass, data modification, or complete database compromise.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
SSCMS · siteserver
7.4.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7435
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7435
github.com
https://github.com/siteserver/cms
github.com
https://github.com/siteserver/cms/issues/3891
www.vulncheck.com
https://www.vulncheck.com/advisories/sscms-sql-injection-via-stl-sqlcontent-querystring
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