Goal Reached Thanks to every supporter โ€” we hit 100%!

Goal: 1000 CNY ยท Raised: 1359 CNY

100%

CVE-2023-47795 โ€” AI Deep Analysis Summary

CVSS 9.0 ยท Critical

Q1What is this vulnerability? (Essence + Consequences)

๐Ÿšจ **Essence**: Stored XSS in Liferay Portal/DXP Document & Media widgets. ๐Ÿ“‰ **Consequences**: Attackers inject malicious scripts. Victims get hijacked sessions, data theft, or defacement.โ€ฆ

Q2Root Cause? (CWE/Flaw)

๐Ÿ›ก๏ธ **CWE-79**: Improper Neutralization of Input During Web Page Generation. ๐Ÿ’ฅ **Flaw**: The system fails to sanitize user input in the Document and Media widgets, allowing raw HTML/JS execution.

Q3Who is affected? (Versions/Components)

๐Ÿข **Vendor**: Liferay. ๐Ÿ“ฆ **Products**: Liferay Portal & Liferay DXP. โš ๏ธ **Scope**: Any version vulnerable to this specific Stored XSS in the media/document handling components.

Q4What can hackers do? (Privileges/Data)

๐Ÿ•ต๏ธ **Privileges**: Requires **Authenticated** user access. ๐ŸŽฏ **Actions**: Inject arbitrary web scripts or HTML. ๐Ÿ’ธ **Impact**: Steal cookies, perform actions on behalf of users, or redirect victims to phishing sites.

Q5Is exploitation threshold high? (Auth/Config)

๐Ÿ”“ **Threshold**: Medium. ๐Ÿ“ **Auth**: Requires **Low** privilege (PR:L). ๐Ÿ–ฑ๏ธ **UI**: Requires **User Interaction** (UI:R) to trigger the payload. ๐ŸŒ **Network**: Attackable remotely (AV:N).

Q6Is there a public Exp? (PoC/Wild Exploitation)

๐Ÿšซ **Public Exp**: No public PoC or exploit code found in the provided data. ๐Ÿ“œ **Reference**: Only a vendor advisory link is available. Wild exploitation is currently theoretical based on this data.

Q7How to self-check? (Features/Scanning)

๐Ÿ” **Check**: Scan for Liferay Portal/DXP instances. ๐Ÿ“‚ **Focus**: Inspect 'Document and Media' widgets for unsanitized input fields. ๐Ÿ“ก **Tools**: Use DAST scanners targeting CWE-79 in file upload/management features.

Q8Is it fixed officially? (Patch/Mitigation)

๐Ÿ› ๏ธ **Fix**: Official patch available via Liferay.โ€ฆ

Q9What if no patch? (Workaround)

๐Ÿšง **Workaround**: If unpatched, restrict access to Document/Media widgets. ๐Ÿšซ **Input**: Implement strict allow-listing for file uploads. ๐Ÿงน **Sanitize**: Ensure server-side validation strips HTML/JS tags before storage.

Q10Is it urgent? (Priority Suggestion)

โšก **Priority**: HIGH. ๐Ÿ“… **Published**: Feb 21, 2024. ๐Ÿ“ˆ **CVSS**: 8.1 (High). ๐Ÿƒ **Action**: Patch immediately. Stored XSS is dangerous and easy to exploit for authenticated users.