Reflected XSS via unencoded iProov token
Published Apr 29, 2026 · Updated Apr 29, 2026
Reflected XSS in WSO2 Identity Server 7.1.0 before 7.1.0.28 allows remote attackers to run JavaScript via a crafted iProov token. The iproovlogin.jsp authentication page inserts the token into a component attribute without HTML encoding, allowing attacker-controlled markup to enter the response. Exploitation requires a user to load the crafted authentication response; scripts can redirect the browser, alter the page, or read browser data, but httpOnly session cookies prevent session hijacking.
Summary
What happened
Reflected XSS in WSO2 Identity Server 7.1.0 before 7.1.0.28 allows remote attackers to run JavaScript via a crafted iProov token. The iproovlogin.jsp authentication page inserts the token into a component attribute without HTML encoding, allowing attacker-controlled markup to enter the response. Exploitation requires a user to load the crafted authentication response; scripts can redirect the browser, alter the page, or read browser data, but httpOnly session cookies prevent session hijacking.
The record
- CVE
- CVE-2025-10503
- Published
- Apr 29, 2026
- Updated
- Apr 29, 2026
- Vendor
- WSO2
- Product
- WSO2 Identity Server
- Classifications
- CWE-79, CAPEC-20, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 29, 2026CVE publishedPublication date reported by the CVE source.
- Apr 29, 2026Record 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=7.1.0 <7.1.0.28
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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