Code Injection in Viewer (CVE-2023-25261)
Summary
Code injection in Viewer (CVE-2023-25261). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
Certain Stimulsoft GmbH products are affected by: Remote Code Execution. This affects Stimulsoft Designer (Desktop) 2023.1.4 and Stimulsoft Designer (Web) 2023.1.3 and Stimulsoft Viewer (Web) 2023.1.3. Access to the local file system is not prohibited in any way. Therefore, an attacker may include source code which reads or writes local directories and files. It is also possible for the attacker to prepare a report which has a variable that holds the gathered data and render it in the report.
Source: NIST National Vulnerability Database NVD
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-2023-25261 has been found in Viewer.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Viewer CVE-2023-25261" on the vendor's site.
CVE-2023-25261 (Viewer) — CWE-94 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
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.
Arbitrary code execution (CWE-94) exists in Viewer.
Check the vendor advisory for the affected versions of Viewer.
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.
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. Run grep -r 'Viewer' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'Viewer' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
Viewerを grep し、稼働しているサービス・バージョンを把握する。 -
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
- advisory cves.at
- patch stimulsoft.com
- web cloud-trustit.spp.at