CVE-2026-29515: CWE-303 Incorrect implementation of authentication algorithm in MiCode FileExplorer
MiCode FileExplorer contains an authentication bypass vulnerability in the embedded SwiFTP FTP server component that allows network attackers to log in without valid credentials. Attackers can send arbitrary username and password combinations to the PASS command handler, which unconditionally grants access and allows listing, reading, writing, and deleting files exposed by the FTP server. The MiCode/Explorer open source project has reached end-of-life status.
AI Analysis
Technical Summary
CVE-2026-29515 is an authentication bypass vulnerability in the SwiFTP FTP server component embedded within MiCode FileExplorer. The vulnerability arises from an incorrect implementation of the authentication algorithm (CWE-303), where the PASS command handler accepts any username and password combination without validation. This allows unauthenticated remote attackers to gain full access to the FTP server's file operations, including listing, reading, writing, and deleting files. The affected product is MiCode FileExplorer, which has reached end-of-life status, and no official patch or fix is available.
Potential Impact
An unauthenticated remote attacker can bypass authentication controls and gain full access to the FTP server component within MiCode FileExplorer. This access includes the ability to list directory contents, read files, write new files, and delete existing files. Such capabilities can lead to data exposure, data loss, and potential further compromise of systems relying on this software.
Mitigation Recommendations
No official patch or fix is available for this vulnerability as the MiCode/Explorer project is end-of-life. Users should discontinue use of MiCode FileExplorer or isolate the affected FTP server component from untrusted networks to prevent exploitation. Consider replacing the software with a maintained alternative that does not contain this vulnerability.
CVE-2026-29515: CWE-303 Incorrect implementation of authentication algorithm in MiCode FileExplorer
Description
MiCode FileExplorer contains an authentication bypass vulnerability in the embedded SwiFTP FTP server component that allows network attackers to log in without valid credentials. Attackers can send arbitrary username and password combinations to the PASS command handler, which unconditionally grants access and allows listing, reading, writing, and deleting files exposed by the FTP server. The MiCode/Explorer open source project has reached end-of-life status.
CVSS v4.0
Score 9.3critical
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-29515 is an authentication bypass vulnerability in the SwiFTP FTP server component embedded within MiCode FileExplorer. The vulnerability arises from an incorrect implementation of the authentication algorithm (CWE-303), where the PASS command handler accepts any username and password combination without validation. This allows unauthenticated remote attackers to gain full access to the FTP server's file operations, including listing, reading, writing, and deleting files. The affected product is MiCode FileExplorer, which has reached end-of-life status, and no official patch or fix is available.
Potential Impact
An unauthenticated remote attacker can bypass authentication controls and gain full access to the FTP server component within MiCode FileExplorer. This access includes the ability to list directory contents, read files, write new files, and delete existing files. Such capabilities can lead to data exposure, data loss, and potential further compromise of systems relying on this software.
Mitigation Recommendations
No official patch or fix is available for this vulnerability as the MiCode/Explorer project is end-of-life. Users should discontinue use of MiCode FileExplorer or isolate the affected FTP server component from untrusted networks to prevent exploitation. Consider replacing the software with a maintained alternative that does not contain this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-03-04T15:39:26.872Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69b0e8b62f860ef943102174
Added to database: 03/11/2026, 03:59:50 UTC
Last enriched: 07/30/2026, 00:33:49 UTC
Last updated: 07/31/2026, 19:30:17 UTC
Views: 530
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.