Stored XSS via unvalidated appointment-type names
Published Dec 27, 2022 · Updated Apr 11, 2025
Stored XSS in OpenMRS Appointment Scheduling Module 1.12 and earlier allows remote authenticated users to execute script in another user's browser. The validateFieldName method accepted appointment-type names containing HTML while module views used unsafe HTML binding, so stored markup was rendered without output encoding. Low-privilege access to create or edit an appointment type is required, and another user must view the stored name for browser-side execution.
Summary
What happened
Stored XSS in OpenMRS Appointment Scheduling Module 1.12 and earlier allows remote authenticated users to execute script in another user's browser. The validateFieldName method accepted appointment-type names containing HTML while module views used unsafe HTML binding, so stored markup was rendered without output encoding. Low-privilege access to create or edit an appointment type is required, and another user must view the stored name for browser-side execution.
The record
- CVE
- CVE-2020-36635
- Published
- Dec 27, 2022
- Updated
- Apr 11, 2025
- Vendor
- OpenMRS
- Product
- OpenMRS Appointment Scheduling Module
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 27, 2022CVE publishedPublication date reported by the CVE source.
- Apr 11, 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=1.0
- Affected versionversion=1.1
- Affected versionversion=1.10
- Affected versionversion=1.11
- Affected versionversion=1.12
- Affected versionversion=1.2
- Affected versionversion=1.3
- Affected versionversion=1.4
- Affected versionversion=1.5
- Affected versionversion=1.6
- Affected versionversion=1.7
- Affected versionversion=1.8
- Affected versionversion=1.9
What conditions does exploitation require?
What is affected?
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
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Technologies
Your stack
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Your stack
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