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GatewayApplication · Citrix

CVE-2023-24488

MEDIUM · 6.1 CVSS v3.1 Published 2023-07-10
Fix available
A fix is available. Upgrade to 12.1-55.296 / 12.1-65.35 or later.
See remediation →
68/100
Remediation priority · Elevated
High EPSS Remotely reachable No privileges

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
Cross site scripting vulnerability in Citrix ADC and Citrix Gateway  in allows and attacker to perform cross site scripting

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 · moderate confidence

Cross-site scripting (XSS) vulnerability in Citrix ADC and Citrix Gateway allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability has a CVSS score of 6.1 (Medium), indicating moderate severity with low attack complexity.

MitigationApply the relevant Citrix security patches for ADC and Gateway. Additionally, implement input validation and output encoding on affected interfaces as a defense-in-depth measure.

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
GatewayApplication
Affected:>= 12.1, < 12.1-65.35>= 13.0, < 13.0-90.11>= 13.1, < 13.1-45.61
Application Delivery ControllerApplication
Affected:>= 12.1, < 12.1-55.296>= 12.1, < 12.1-65.35>= 13.0, < 13.0-90.11>= 13.1, < 13.1-45.61

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
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/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. Identify the Citrix product
    Access the CLI and run 'show version' or 'nsversion' to confirm whether the device is Citrix ADC or Citrix Gateway. Alternatively, log into the web interface and check System > Information > Version.
    Affected if The product is Citrix ADC or Citrix Gateway.
  2. Determine the exact build version
    Run 'show version' in the CLI or check the version page in the web interface. Note the full version string including the build number (for example, 12.1-55.296 or 13.1-45.61).
    Affected if The exact build version is displayed and can be compared against the vulnerable ranges.
  3. Compare the installed version against affected ranges
    For Citrix ADC: check if version is 12.1 and build < 12.1-55.296 or < 12.1-65.35, or 13.0 < 13.0-90.11, or 13.1 < 13.1-45.61. For Citrix Gateway: check if version is 12.1 < 12.1-65.35, or 13.0 < 13.0-90.11, or 13.1 < 13.1-45.61.
    Affected if The installed version falls within any of these ranges: 12.1 < 12.1-65.35 (Gateway) or 12.1 < 12.1-55.296 (ADC), 13.0 < 13.0-90.11, or 13.1 < 13.1-45.61.
  4. Confirm the web interface is accessible
    Verify that the Citrix management interface (NSGUI) or the gateway login portal is reachable over HTTP/HTTPS. This vulnerability affects the web-based interface where XSS payloads could be injected.
    Affected if The web interface is exposed and the version is within the affected ranges.

You are affected if you are running Citrix ADC or Citrix Gateway with a version that falls within the vulnerable ranges and the web interface is accessible.

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 12.1-55.296 / 12.1-65.35 / 13.0-90.11 or later
Fixed in 12.1-55.29612.1-65.3513.0-90.11
Interim mitigation

Apply the relevant Citrix security patches for ADC and Gateway. Additionally, implement input validation and output encoding on affected interfaces as a defense-in-depth measure.

Recommended fix High confidence

12.1-65.35 (or 12.1-55.296 for older 12.1), 13.0-90.11, or 13.1-45.61 depending on current branch

  1. Identify the currently installed Citrix ADC or Gateway version and build number
  2. Determine which release branch (12.1, 13.0, or 13.1) is currently in use
  3. For 12.1 branch: upgrade to build 12.1-65.35 or later (or 12.1-55.296 for older 12.1 versions)
  4. For 13.0 branch: upgrade to build 13.0-90.11 or later
  5. For 13.1 branch: upgrade to build 13.1-45.61 or later
  6. After upgrade, verify the build number reflects the patched version
  7. Test critical ADC/Gateway functions and SSL VPN operations to ensure normal operation
Caveat Review Citrix release notes for the target build for any configuration or behavioral changes; some older features may be deprecated

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

Fix this in Gateway Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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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-2023-24488 in production — separate from our analysis above.

No notes yet

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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