Security readout for executives and security teams
Plain-English summary
Synology Photo Station had a path traversal flaw that could let a logged-in remote attacker upload files to unintended locations. The known impact is limited to integrity, not data theft or service outage, but exposed Photo Station instances should be upgraded because arbitrary upload paths can create follow-on operational risk.
Executive priority
Treat as a moderate maintenance priority. Upgrade affected Photo Station systems during the next patch window, sooner if the service is internet-facing or accessible to many non-administrative users.
Technical view
CVE-2019-11822 affects SYNO.PhotoStation.File in Synology Photo Station before 6.8.11-3489 and before 6.3-2977. The vulnerable uploadphoto parameter allows relative path traversal during file upload. CVSS 3.1 is 4.3 with network access, low complexity, low privileges required, no user interaction, and low integrity impact.
Likely exposure
Exposure is likely limited to Synology Photo Station deployments running versions earlier than 6.8.11-3489 or 6.3-2977, particularly where remote authenticated users can access upload functionality.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires low privileges and network access, so risk depends on whether untrusted or broadly provisioned users can authenticate to Photo Station.
Researcher notes
The CVE data identifies CWE-23 path traversal in SYNO.PhotoStation.File via uploadphoto. Public details in the bundle are limited; do not assume code execution, unauthenticated exploitation, or confirmed abuse without additional vendor or incident evidence.
Mitigation direction
- Upgrade Synology Photo Station to 6.8.11-3489, 6.3-2977, or later vendor-supported releases.
- Review Synology advisory SA-19-01 for exact package guidance.
- Restrict Photo Station access to trusted users and networks where possible.
- Remove unused or externally exposed Photo Station services.
Validation and detection
- Inventory Synology devices running Photo Station and record exact package versions.
- Confirm no instance remains below 6.8.11-3489 or 6.3-2977.
- Review access controls for accounts allowed to upload photos.
- Check file upload areas for unexpected files or abnormal paths.
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-23: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-11822 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
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.synology.com/security/advisory/Synology_SA_19_01CVE 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.
Relative Path Traversal
Relative Path Traversal represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.