Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2023-24488

Cross site scripting

Citrix ADC and Citrix Gateway  · affected before 13.1-45.61

Watch CVE-2023-24488 Browse KEV feed
Severity
CVSS 6.1 · Medium
Confidence
High
Exploit status
Exploited in the wild
EPSS
81.2%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2023-24488 is an unauthenticated Cross site scripting affecting Citrix ADC and Citrix Gateway .

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is high. Also confirmed by third-party sources.

Who is affected?

Citrix ADC and Citrix Gateway  affected before 13.1-45.61.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Cross site scripting

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

Citrix Affected
Citrix ADC and Citrix Gateway 
Before 13.1-45.61 Before 13.0-90.11  Before 12.1-65.35 Before 12.1-55.296 Before 13.1-37.150
Published
10 Jul 2023
Exploitation Reported
22 Apr 2025
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
Required

Tags

nuclei_scanner

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Shadowserver

Recorded 22 Apr 2025

A trusted third party reported exploitation.

Proof of concept available

GitHub

Recorded 04 Jul 2023

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
The Shadowserver First 2025-04-28 00:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-24488.yaml 25 Apr 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

6.1 Medium

Potential damage if exploited. Separate from whether attackers are using it.

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

EPSS

81.2%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-79

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

Citrix Gateway and Citrix ADC - Cross-Site Scripting

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

  1. 14:20 UTC

    Public PoC available

    Public proof-of-concept code published

  2. 00:00 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  3. 00:00 UTC

    Nuclei template available

    Scanner coverage available

  4. 20:41 UTC

    CVE published

    Vulnerability disclosed publicly

  5. 15:49 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

Start 14-day Pro trial Read API docs
  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2023-24488

Sample API response 
{
  "cve_id": "CVE-2023-24488",
  "confidence": "High",
  "cvss_score": 6.1,
  "cvss_estimated": false,
  "epss_score": 0.81169,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}