CVE-2022-28118
RCE in SiteServer CMS
CVE-2022-28118 is a critical vulnerability (CVSS 9.8) in Sscms Siteserver Cms, published May 3, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.77%, the 86th percentile. No source names a fixed version.
SiteServer CMS v7.x allows attackers to execute arbitrary code via a crafted plug-in.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
SiteServer CMS v7.x allows attackers to execute arbitrary code via a crafted plug-in.
- Record
CVE-2022-28118- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
SiteServer CMS v7.x allows attackers to execute arbitrary code via a crafted plug-in.
- Record
CVE-2022-28118- Updated
- 2026-11-02
EUVDEUVD-2022-4875 No score
SiteServer CMS v7.x allows attackers to execute arbitrary code via a crafted plug-in.
- Record
EUVD-2022-4875- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q469-j32f-h7vm
RCE in SiteServer CMS
SiteServer CMS v7.x, which SiteServer UI relies on, allows attackers to execute arbitrary code via a crafted plug-in.
- Record
GHSA-q469-j32f-h7vm- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-q469-j32f-h7vm
RCE in SiteServer CMS
SiteServer CMS v7.x, which SiteServer UI relies on, allows attackers to execute arbitrary code via a crafted plug-in.
- Record
GHSA-q469-j32f-h7vm- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
siteservernpm |
7.0.0 and later | None known |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Richard-Tang/SSCMS-PluginShell | 2021-05-30 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-02 | created | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |