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Photo StationApplication · Qnap

CVE-2021-34355

MEDIUM · 5.4 CVSS v3.1 Published 2021-10-01
Fix available
A fix is available. Upgrade to 5.4.10 / 5.7.13 or later.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

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
A cross-site scripting (XSS) vulnerability has been reported to affect QNAP NAS running Photo Station. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of Photo Station: Photo Station 5.4.10 ( 2021/08/19 ) and later Photo Station 5.7.13 ( 2021/08/19 ) and later Photo Station 6.0.18 ( 2021/09/01 ) and later

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 · high confidence

A cross-site scripting (XSS) vulnerability in QNAP Photo Station allows remote attackers to inject malicious code through the application. This occurs due to insufficient input validation/sanitization in Photo Station web interface parameters.

MitigationUpgrade Photo Station to version 5.4.10 or later (for 5.x branches) or 6.0.18 or later. QNAP has released patches for the supported versions.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Photo StationApplication
Affected:< 5.4.10>= 5.7.0, < 5.7.13>= 6.0.0, < 6.0.18

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
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Photo Station is installed
    Log into QTS (QNAP Turbo NAS) and open App Center. Look for Photo Station in the installed applications list. Alternatively, access Photo Station directly via its web URL (typically http://[NAS IP]/photo/).
    Affected if Photo Station is not installed, this CVE does not apply.
  2. Locate Photo Station version number
    In QTS App Center, click on Photo Station and view the version information shown in the application details panel. Alternatively, in Photo Station web interface, go to Settings > About to find the version.
    Affected if Unable to determine the version, assume the system may be affected and proceed with further investigation.
  3. Compare version against affected ranges
    Compare the installed Photo Station version to these affected ranges: version < 5.4.10, OR version >= 5.7.0 and < 5.7.13, OR version >= 6.0.0 and < 6.0.18.
    Affected if The installed version falls within any of these ranges: < 5.4.10, 5.7.0-5.7.12, or 6.0.0-6.0.17.
  4. Confirm Photo Station web interface is accessible
    Attempt to access Photo Station via web browser at the standard Photo Station URL (such as /photo/ or /cgi-bin/photo/). The XSS flaw requires the web interface to be reachable.
    Affected if The Photo Station web interface is not accessible or not enabled, the XSS vulnerability cannot be exploited.

A system is affected if Photo Station is installed, its web interface is accessible, and the installed version falls within < 5.4.10, 5.7.0-5.7.12, or 6.0.0-6.0.17.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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
Upgrade available Upgrade to 5.4.10 / 5.7.13 / 6.0.18 or later
Fixed in 5.4.105.7.136.0.18
Interim mitigation

Upgrade Photo Station to version 5.4.10 or later (for 5.x branches) or 6.0.18 or later. QNAP has released patches for the supported versions.

Recommended fix High confidence

Photo Station 5.4.10 (or latest 5.4.x), 5.7.13 (or latest 5.7.x), or 6.0.18 (or latest 6.0.x) depending on your version branch

  1. 1. Log in to the QNAP NAS admin interface
  2. 2. Navigate to Photo Station or App Center to identify the currently installed version
  3. 3. Determine which version branch your current installation is on (< 5.4.10, 5.7.x, or 6.0.x)
  4. 4. Download the appropriate fixed version from QNAP's official download center or install directly via App Center: Photo Station 5.4.10 or later for v5.4.x users, Photo Station 5.7.13 or later for v5.7.x users, Photo Station 6.0.18 or later for v6.0.x users
  5. 5. Install the update following QNAP's standard update procedure
  6. 6. Verify the new version is installed correctly and Photo Station functions normally

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

Fix this in Photo Station Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,664.

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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-2021-34355 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data