CVE-2025-25323
📋 TL;DR
This vulnerability in the 51Job iOS app allows attackers to access sensitive user information by tricking users into clicking a specially crafted link. It affects users of the 51Job job search application on iOS devices. The vulnerability exploits improper input validation in the app's link handling mechanism.
💻 Affected Systems
- 51Job iOS Application
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal sensitive personal information including user credentials, contact details, and potentially job application history from affected users.
Likely Case
Targeted phishing attacks where users receive malicious links that appear legitimate, leading to unauthorized data access.
If Mitigated
With proper input validation and URL sanitization, the vulnerability would be prevented from executing.
🎯 Exploit Status
The exploit requires user interaction (clicking a link) but is technically simple to execute once the malicious link is crafted.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check for app updates in the Apple App Store
2. Update to the latest version of 51Job iOS app
3. If no update is available, consider temporarily uninstalling the app
🔧 Temporary Workarounds
Disable automatic link handling
iosConfigure iOS to prompt before opening links from unknown sources
Settings > Safari > Open Links > Ask
Avoid clicking unknown links
allEducate users to avoid clicking links from untrusted sources within the app
🧯 If You Can't Patch
- Uninstall the 51Job iOS app until a patch is available
- Use the 51Job web interface instead of the mobile app
🔍 How to Verify
Check if Vulnerable:
Check the app version in iOS Settings > General > iPhone Storage > 51JobCheck Version:
Not applicable for iOS apps - check via device settingsVerify Fix Applied:
Verify the app version is higher than 14.22.0 after updating from the App Store📡 Detection & Monitoring
Log Indicators:
- Unusual URL patterns in app logs
- Multiple failed URL validation attempts
Network Indicators:
- Suspicious redirects to external domains from the app
- Unusual data exfiltration patterns
SIEM Query:
app:"51Job" AND event_type:"url_redirect" AND url_domain NOT IN ["51job.com", "trusted-domains"]