Security readout for executives and security teams
Plain-English summary
CVE-2023-3551 is a critical code-injection flaw in nilsteampassnet/teampass before version 3.0.10. A high-privileged authenticated attacker could potentially run unintended code through the application. Because successful impact is rated high for confidentiality, integrity, and availability, affected deployments should be upgraded promptly.
Executive priority
Treat this as urgent for any affected TeamPass deployment. Although exploitation requires high privileges, the potential business impact is severe because successful code injection can compromise data, application integrity, and service availability.
Technical view
The CVE describes CWE-94 code injection in nilsteampassnet/teampass prior to 3.0.10. CVSS 3.0 score is 9.1 with network attack vector, low complexity, high privileges required, no user interaction, changed scope, and high CIA impact. The provided sources identify a fixing commit and Huntr bounty reference.
Likely exposure
Exposure is limited to organizations running nilsteampassnet/teampass versions earlier than 3.0.10. Risk is highest where high-privileged application accounts are broadly assigned or where the application is reachable from untrusted networks.
Exploitation context
The supplied bundle does not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates exploitation requires high privileges but is network reachable, low complexity, and does not require user interaction after access.
Researcher notes
Do not assume unauthenticated exploitation from the provided evidence. Prioritize version validation, privilege mapping, and fixed-build confirmation. The source bundle does not provide enough detail to identify specific vulnerable parameters or safe detection logic beyond version and patch-state checks.
Mitigation direction
- Upgrade nilsteampassnet/teampass to version 3.0.10 or later.
- Review the linked vendor commit and Huntr report for fixed-version confirmation.
- Restrict administrative or high-privilege access until the upgrade is complete.
- Audit privileged accounts and remove unnecessary elevated permissions.
- Monitor vendor guidance for any later advisories or backports.
Validation and detection
- Inventory all TeamPass deployments and record running versions.
- Flag any nilsteampassnet/teampass instance earlier than 3.0.10.
- Confirm upgraded builds include the referenced fixing commit or vendor release.
- Review logs for unusual high-privilege activity before remediation.
- Verify only expected users retain high-privilege application access.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-3551 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H2.36Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
9.1CriticalVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.