Cross-Site Scripting (XSS) in onSite internet GmbH Auktion NG Auktionssoftware (CVE-2026-96258)
Summary
Cross-site scripting in onSite internet GmbH Auktion NG Auktionssoftware (CVE-2026-96258). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
A vulnerability has been found in onSite internet GmbH Auktion NG Auktionssoftware up to 20260722. This affects an unknown part of the file /forgotpasswd.html of the component Public Password Reset Endpoint. The manipulation of the argument email leads to cross site scripting. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-96258 has been found in onSite internet GmbH Auktion NG Auktionssoftware.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "onSite internet GmbH Auktion NG Auktionssoftware CVE-2026-96258" on the vendor's site.
CVE-2026-96258 (onSite internet GmbH Auktion NG Auktionssoftware) — CWE-79 / CVSS v3 4.3
Attack vector: remote (network-reachable) / unauthenticated
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Cross-site scripting (XSS) (CWE-79) exists in onSite internet GmbH Auktion NG Auktionssoftware.
Check the vendor advisory for the affected versions of onSite internet GmbH Auktion NG Auktionssoftware.
Severity: Medium (CVSS 4.3/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで onSite internet GmbH Auktion NG Auktionssoftware を使っているサービスとバージョンを洗い出す。
-
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- web github.com
- web vuldb.com
- web vuldb.com
- web vuldb.com
- web vuldb.com
- web nvd.nist.gov
- web github.com