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.NET
.NET NuGet
Not in CISA KEV
LOW severity

CVE-2023-2862 SSCMS

LOW

CVE-2023-2862 is a low-severity (CVSS 3.5) Cross-site Scripting (XSS) vulnerability in SSCMS. 1 public exploit reference exists, so weaponization risk is real. No vendor fix is recorded yet; mitigation options are listed below.

SiteServer CMS search cross site scripting

Also known asGHSA-63c6-w556-3h7q
Published
May 24, 2023
Updated
Aug 12, 2026
Affected
1 pkg
Patched
None yet
Exploits
1 known
Exploitation data as of Sep 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs45th percentile — riskier than 45% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

CVE-2023-2862 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 378,156 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected
.NETSSCMS

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.

Description

A vulnerability, which was classified as problematic, was found in SiteServer CMS up to 7.2.1. Affected is an unknown function of the file /api/stl/actions/search. The manipulation of the argument ajaxDivId leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. VDB-229818 is the identifier assigned to this vulnerability.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
.NETNuGetSSCMSall versionsNo fix
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for SSCMS, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    No patched version of SSCMS has shipped for CVE-2023-2862 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2023-2862 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2023-2862. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A vulnerability, which was classified as problematic, was found in SiteServer CMS up to 7.2.1. Affected is an unknown function of the file /api/stl/actions/search. The manipulation of the argument ajaxDivId leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. VDB-229818 is the identifier assigned to this vulnerability.
O3 Security · Impact-Aware SCA

Is CVE-2023-2862 in your dependencies?

O3 Security finds CVE-2023-2862 across NuGet dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2023-2862: SSCMS XSS (Low 3.5) | O3 Security