CVE-2019-11401
SiteServer CMS RCE via unsafe file upload
A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the "as" substring is deleted.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the "as" substring is deleted.
- Record
CVE-2019-11401- CVSS 3.0
- 7.2 High
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE List No score
A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the "as" substring is deleted.
- Record
CVE-2019-11401- Updated
- 2026-11-02
EUVDEUVD-2022-3756 No score
A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the "as" substring is deleted.
- Record
EUVD-2022-3756- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-ff4w-8chr-w2x9
SiteServer CMS RCE via unsafe file upload
A issue was discovered in SiteServer CMS prior to version 6.12. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the "as" substring is deleted.
- Record
GHSA-ff4w-8chr-w2x9- CVSS 3.0
- 7.2 High
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSV
A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the "as" substring is deleted.
- Record
CVE-2019-11401- CVSS 3.0
- 7.2 High
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-ff4w-8chr-w2x9
SiteServer CMS RCE via unsafe file upload
A issue was discovered in SiteServer CMS prior to version 6.12. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the "as" substring is deleted.
- Record
GHSA-ff4w-8chr-w2x9- CVSS 3.0
- 7.2 High
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-11401 is a high vulnerability (CVSS 7.2) in Siteserver Cms, published April 21, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.82%, the 86th percentile. Fixed in sscms 6.12.