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CVE-2026-96673 – Unauthenticated SQL Injection – Photoview ≤ 2.4.0

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Summary

CVE-2026-96673 is an unauthenticated SQL injection vulnerability (CWE-89) in Photoview, a self-hosted photo gallery application, affecting the album download route. Attackers can manipulate the album_id path segment to inject arbitrary SQL and extract database contents without any authentication. The flaw carries a high severity rating (CVSS 8.7) and affects all Photoview releases through version 2.4.0.

Technical details

  • Root cause: The album download route passes the album_id value taken directly from the URL path into GORM’s Find method as a raw string, without validating that it is numeric.
  • Trigger conditions: Because GORM interprets non-numeric input as a SQL condition rather than a primary-key lookup, an attacker can supply a crafted string in album_id that is evaluated as part of the SQL query, and this evaluation happens before any authorization check is performed.
  • Attack vector: Network-based, unauthenticated — no credentials or user interaction are required to reach the vulnerable route.
  • Impact: Attackers can use time-based or blind SQL injection techniques to extract arbitrary data from the backend database, potentially exposing sensitive information such as user records, share tokens, or other stored data.

Affected software

  • Photoview through version 2.4.0 (all releases up to and including 2.4.0)

Severity

  • CVSS v3.1 Base Score: 7.5 (High) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CVSS v4.0 Score: 8.7 (High) — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Mitigation and recommended actions

  • Immediate: Upgrade Photoview to a version that includes the fix from pull request #1453 (merged July 31, 2026, commit deb1b216e047a30803dc0f48a9fc3d4c4abda594), which validates album_id as a positive integer before any database access and uses parameterized primary-key lookups instead of passing untrusted strings to the query builder.
  • If no patch can be applied immediately:
    • Restrict or disable public/unauthenticated access to the album download route at the network or reverse-proxy layer until the upgrade can be completed.
    • Monitor web server and application logs for anomalous or malformed album_id values (non-numeric, SQL-like payloads) in download route requests.
    • Deploy a web application firewall (WAF) rule to block SQL injection patterns targeting the album download path as a temporary compensating control.

References

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