CVE-2026-82599
Received Received - Intake

Path Traversal in SeaCMS via Avatar Upload

Publication date: 2026-08-31

Last updated on: 2026-08-31

Assigner: VulDB

Description
A vulnerability was identified in SeaCMS up to 13.6. Affected by this vulnerability is the function unlink of the file /member.php?action=chgpwdsubmit of the component Avatar Upload. Such manipulation of the argument oldpic leads to path traversal. It is possible to launch the attack remotely. The exploit is publicly available and might be used.

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Meta Information

Published
2026-08-31
Last Modified
2026-08-31
Generated
2026-08-31
AI Q&A
2026-08-31
EPSS Evaluated
N/A
NVD
CVE-2026-82599
EUVD
EUVD-2026-68302

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
seacms seacms to 13.6 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

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Executive Summary

This vulnerability affects SeaCMS up to version 13.6. It involves a path traversal issue in the member avatar upload functionality. An authenticated user can manipulate the 'oldpic' parameter to delete arbitrary files on the server by exploiting the unlink() function in member.php. The attack is possible remotely and a public exploit exists.

Detection Guidance

To detect this vulnerability, monitor for unusual file deletion activity in SeaCMS member.php, particularly when the member avatar upload feature is enabled. Check server logs for requests to /member.php?action=chgpwdsubmit with manipulated 'oldpic' parameters. Look for HTTP 500 errors after avatar uploads, which may indicate failed path traversal attempts.

Impact Analysis

If exploited, this vulnerability could allow an attacker to delete critical files on the server, potentially causing system instability, data loss, or denial of service. Attackers could target configuration files, logs, or other sensitive data.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling unauthorized file deletion. GDPR requires protecting personal data integrity, while HIPAA mandates safeguarding protected health information. Unauthorized deletion of files could violate these requirements by compromising data availability and integrity.

Mitigation Strategies

Immediately disable the member avatar upload feature by setting $cfg_upic to '0' in SeaCMS configuration. Update SeaCMS to the latest patched version if available. Implement strict input validation for the 'oldpic' parameter and restrict file deletions to the uploads/user/ directory only. Review server logs for signs of exploitation.

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