Security readout for executives and security teams
Plain-English summary
TeamPass versions before 3.0.10 contain a cross-site scripting flaw. An attacker with high privileges could cause another user to interact with malicious content inside the application, potentially exposing sensitive information and making limited changes. This matters because TeamPass stores shared secrets, but the required privilege level and user interaction reduce urgency.
Executive priority
Treat this as a moderate-priority remediation for any TeamPass environment, with faster action if the system stores high-value secrets or is broadly reachable. The issue is not source-confirmed as actively exploited, but password-management context raises business impact.
Technical view
CVE-2023-3565 is a CWE-79 XSS issue in nilsteampassnet/teampass before 3.0.10. The CVSS 3.0 vector is AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N, scoring 5.2. The source bundle identifies the fix by version boundary and references a GitHub commit, but does not provide complete vulnerable component detail.
Likely exposure
Exposure is likely limited to organizations running TeamPass before 3.0.10, especially instances reachable over a network by privileged users. Public internet exposure increases concern, but the CVSS vector requires high privileges and user interaction.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires network access, high privileges, and victim interaction. Because TeamPass handles passwords, successful XSS could still have meaningful confidentiality impact.
Researcher notes
The source bundle names generic XSS, CWE-79, and a fixed-before version boundary, but lacks detailed affected parameters or exploit context. Avoid assuming exploitation in the wild. Focus validation on version evidence, exposure, privilege model, and whether the referenced commit is present.
Mitigation direction
- Upgrade TeamPass to version 3.0.10 or later.
- Review the referenced vendor commit and release guidance before rollout.
- Restrict TeamPass access to trusted networks or VPN users.
- Review privileged TeamPass accounts and remove unnecessary access.
- Monitor vendor advisories for any follow-up fixes.
Validation and detection
- Inventory all TeamPass deployments and record their versions.
- Flag any TeamPass instance running earlier than 3.0.10.
- Confirm scanners map findings specifically to CVE-2023-3565.
- Review TeamPass logs for unusual script-like input patterns.
- Retest after upgrade using non-destructive XSS validation methods.
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-2023-3565 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
- Medium
- CVSS
- 5.2 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/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:H/UI:R/S:U/C:H/I:L/A:N0.94.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.2MediumVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/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.