Security readout for executives and security teams
Plain-English summary
This issue lets a logged-in user of Synology Surveillance Station place script or HTML in a profile description field. If another user views the affected content, their browser could run attacker-controlled script in the Surveillance Station context. The main business concern is account or session abuse inside a surveillance management system.
Executive priority
Treat this as a moderate-priority hygiene fix. It is authenticated and product-specific, but it affects surveillance management software where session abuse or administrator-targeted scripting could matter operationally. Prioritize upgrades on shared or externally reachable systems.
Technical view
CVE-2017-16767 is a CWE-79 cross-site scripting flaw in Synology Surveillance Station before 8.1.2-5469. The CVE states that remote authenticated users can inject arbitrary web script or HTML through the userDesc parameter in User Profile. No CVSS score is provided in the source bundle.
Likely exposure
Exposure is limited to Synology Surveillance Station deployments running versions before 8.1.2-5469, especially where multiple authenticated users can access or edit profile data. Internet exposure is not stated in the sources and should be verified locally.
Exploitation context
The public sources identify an authenticated XSS condition but do not state active exploitation. The CVE is not listed as KEV in the supplied bundle. Practical risk depends on who can authenticate and whether higher-privileged users may view attacker-controlled profile content.
Researcher notes
The source bundle does not include CVSS metrics, proof-of-concept status, or detailed vendor workaround text. Analysis should stay scoped to authenticated XSS via userDesc in User Profile for Surveillance Station before 8.1.2-5469.
Mitigation direction
- Upgrade Synology Surveillance Station to 8.1.2-5469 or later.
- Review Synology advisory SA-17:77 for official remediation guidance.
- Restrict Surveillance Station access to trusted users only.
- Limit external access to the management interface where possible.
Validation and detection
- Inventory Surveillance Station versions across Synology devices.
- Confirm no deployment remains below 8.1.2-5469.
- Review user accounts with permission to edit profile descriptions.
- Check audit records for suspicious profile description changes.
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-2017-16767 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.synology.com/en-global/support/security/Synology_SA_17_77CVE reference · x_refsource_CONFIRM
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.