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Cross-site Scripting (XSS)Weakness · CWE-79

CVE-2026-53662

CRITICAL · 9.6 CVSS v3.1 Published 2026-06-23
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
immich is a high performance self-hosted photo and video management solution. From commit 4ffa26c9 until 4eb1003, a reflected cross-site scripting (XSS) vulnerability on the /auth/login page allows an attacker to fully compromise any authenticated user's account with a single link click. The continue query parameter is read from the URL and passed to SvelteKit's redirect() without any scheme or origin validation, allowing attacker-controlled JavaScript to execute inside Immich's origin. The payload then uses the victim's existing session to mint an all-permission API key on their account, leading to persistent account takeover. This vulnerability is fixed in commit 4eb1003.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-79

Untrusted input is placed into a web page without being neutralised, so an attacker's markup or script executes in another user's browser. That can hijack sessions, capture keystrokes, or silently perform actions as the victim. Fixing it properly means context-aware output encoding everywhere data meets HTML, backed by a content-security policy as a second line of defence.

General guidance for the cross-site scripting (xss) class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix Moderate confidence

Upgrade to the latest stable Immich release that includes commit 4eb100327ea5da2e90381b96809f1f1cc51cc7e3 (verify the specific version number in Immich's GitHub releases).

  1. 1. Back up your Immich instance database and data directory before performing any upgrade.
  2. 2. Identify your current Immich version by checking the admin settings page or running `docker ps` to see the image tag.
  3. 3. Pull the latest Immich release. If using Docker, run: `docker-compose pull` or `docker pull immich-app/immich-server:<new-version>`.
  4. 4. For Docker installations, update your docker-compose.yml to use the latest stable release tag (e.g., the release containing commit 4eb1003).
  5. 5. For non-Docker installations, run the standard upgrade commands for your deployment method (e.g., `npm install` and restart services for source installations).
  6. 6. After upgrading, verify the fix is applied by checking that the `/auth/login` page properly validates the `continue` query parameter (it should now validate the URL scheme or origin).
  7. 7. Force-logout all existing sessions and instruct users to re-authenticate as a precaution.
Caveat Check release notes for your target version for any breaking changes; Immich may require database migrations or have new dependency requirements.

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-53662 in production — separate from our analysis above.

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