CVE-2020-5731Public exploitNetwork attack vector

Authenticated script execution via reflected app parameter

Published Apr 17, 2020 · Updated Aug 4, 2024

Reflected XSS in OpenMRS Reference Application 2.9 and earlier allows remote authenticated users to execute script via the app parameter. The ActiveVisit page places the app value into its HTML response without neutralizing an attribute-closing payload. Exploitation requires an authenticated session and a user to load a crafted URL; injected code runs in that browser's OpenMRS origin.

CVSS severity6.1
Medium
EPSS probability1.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in OpenMRS Reference Application 2.9 and earlier allows remote authenticated users to execute script via the app parameter. The ActiveVisit page places the app value into its HTML response without neutralizing an attribute-closing payload. Exploitation requires an authenticated session and a user to load a crafted URL; injected code runs in that browser's OpenMRS origin.

The record

CVE
CVE-2020-5731
Published
Apr 17, 2020
Updated
Aug 4, 2024
Vendor
OpenMRS
Product
OpenMRS Reference Application Module
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 17, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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.

  1. Affected versionversion=Versions 2.90 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenMRS · OpenMRS Reference Application Moduleversion=Versions 2.90 and prior

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.0TenableAV:N/AC:M/Au:S/C:P/I:P/A:P
4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

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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