Security readout for executives and security teams
Plain-English summary
Synology Photo Station versions before 6.8.14-3500 had a SQL injection flaw. A remote user who is already authenticated could potentially manipulate backend database queries, risking disclosure, modification, or disruption of Photo Station data.
Executive priority
Treat this as a high-priority legacy exposure issue if Photo Station remains in use. The flaw requires authenticated high-privilege access, but the potential data and service impact is broad, and fixed versions are identified.
Technical view
CVE-2021-29090 is CWE-89 SQL injection in the PHP component of Synology Photo Station before 6.8.14-3500. CVSS 3.1 is 7.2, with network access, low attack complexity, high privileges required, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to Synology Photo Station deployments older than 6.8.14-3500 where an attacker can authenticate with high privileges. Internet exposure increases urgency, but the provided sources do not identify affected CPEs or specific deployment patterns.
Exploitation context
The bundle does not indicate CISA KEV listing or active exploitation. The vector is described only as unspecified, so validation should avoid exploit reproduction and focus on version, access, and vendor advisory checks.
Researcher notes
Public detail is limited: the vulnerable component is PHP, the weakness is SQL injection, and vectors are unspecified. Do not assume unauthenticated reachability or public exploit availability from the provided evidence.
Mitigation direction
- Upgrade Synology Photo Station to 6.8.14-3500 or later per Synology guidance.
- Review Synology advisory Synology_SA_20_20 for product-specific update instructions.
- Restrict Photo Station access to trusted networks where possible.
- Review privileged Photo Station accounts and remove unnecessary access.
- Monitor Synology advisories for any additional guidance or superseding fixes.
Validation and detection
- Inventory Synology NAS systems running Photo Station.
- Confirm installed Photo Station version is 6.8.14-3500 or later.
- Identify whether Photo Station is reachable from the internet.
- Review privileged authenticated accounts with Photo Station access.
- Check logs for unusual authenticated database or Photo Station activity.
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-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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 lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-29090 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
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/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:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.synology.com/security/advisory/Synology_SA_20_20CVE 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.