Reflected XSS via XML parsing error
Published Jan 17, 2024 · Updated Jun 17, 2025
Reflected XSS in affected Citrix StoreFront releases allows remote attackers to execute script when a victim opens a crafted link. The SSO flow parses attacker-supplied XML and returns text from the resulting deserialization error without HTML encoding. Victim interaction is required; default installations require attacker authentication, although researchers demonstrated an unauthenticated exposed deployment.
Summary
What happened
Reflected XSS in affected Citrix StoreFront releases allows remote attackers to execute script when a victim opens a crafted link. The SSO flow parses attacker-supplied XML and returns text from the resulting deserialization error without HTML encoding. Victim interaction is required; default installations require attacker authentication, although researchers demonstrated an unauthenticated exposed deployment.
The record
- CVE
- CVE-2023-5914
- Published
- Jan 17, 2024
- Updated
- Jun 17, 2025
- Vendor
- Citrix
- Product
- Citrix StoreFront
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 17, 2024CVE publishedPublication date reported by the CVE source.
- Jun 17, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1912 LTSR <CU8 hotfix 3.22.8001.2
- Affected versionversion=2203 LTSR <CU4 Update 1
- Affected versionversion=2308 Current Release <1
- Affected versionversion=2311 Current Release <0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Coercing XML Deserialization Errors to Achieve XSS in Citrix StoreFrontfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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