Security readout for executives and security teams
Plain-English summary
TeamPass versions before 3.0.10 contain a stored cross-site scripting flaw. An attacker could save malicious content that later runs in another user’s browser, creating risk to sensitive password-management data and trusted actions inside the application.
Executive priority
Prioritize remediation for any TeamPass deployment, especially if externally reachable or used for privileged credentials. This is high severity, but the supplied evidence does not show known active exploitation.
Technical view
CVE-2023-3531 is CWE-79 stored XSS in nilsteampassnet/teampass before 3.0.10. CVSS 8.1 reflects network reachability, low complexity, no privileges required, user interaction required, unchanged scope, and high confidentiality and integrity impact.
Likely exposure
Exposure is likely limited to organizations running nilsteampassnet/teampass versions before 3.0.10. The source bundle does not provide CPEs, exact affected fields, or deployment-specific exposure details.
Exploitation context
CISA KEV is false, and the supplied sources do not state active exploitation. The CVSS vector indicates exploitation requires a user to interact with stored attacker-controlled content.
Researcher notes
The public bundle confirms stored XSS and the fixed-before boundary of 3.0.10, but not the exact vulnerable parameter or route. Avoid assuming exploitability details beyond the CVSS vector and cited references.
Mitigation direction
- Upgrade TeamPass to version 3.0.10 or later.
- Review the linked upstream commit and vendor guidance before deployment.
- Restrict access to TeamPass until patched where exposure is internet-facing.
- Treat suspicious stored content as potentially unsafe during cleanup.
Validation and detection
- Inventory all TeamPass deployments and confirm their running versions.
- Verify no production instance remains below version 3.0.10.
- Review application content for unexpected script-like markup in user-controlled fields.
- Check security monitoring for suspicious TeamPass user activity around the disclosure period.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-2023-3531 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
- High
- CVSS
- 8.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
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:N/UI:R/S:U/C:H/I:H/A:N2.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.1HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
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 Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.