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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.

PUBLISHED Reserved 2026-04-29 | Published 2026-04-30 | Updated 2026-05-04 | Assigner VulnCheck




HIGH: 8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

HIGH: 7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Product status

Default status
unknown

7.4.0 (semver)
affected

Credits

hss94531 (https://github.com/hss94531) finder

Beatriz Fresno Naumova finder

References

github.com/siteserver/cms/issues/3891 exploit

github.com/siteserver/cms/issues/3891 issue-tracking

github.com/siteserver/cms product

www.vulncheck.com/...njection-via-stl-sqlcontent-querystring third-party-advisory

cve.org (CVE-2026-7435)

nvd.nist.gov (CVE-2026-7435)

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