| Title | SeaCMS 13.6 Path Traversal |
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| Description | SeaCMS 13.6 member avatar upload branch passes the client-controlled oldpic value directly to unlink() after a successful image upload when cfg_upic is enabled. A low-privileged member can point oldpic to an arbitrary file path writable by the web server process and delete it. The issue is conditional on member avatar upload being enabled. |
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| Source | ⚠️ https://github.com/T-Chachamaru/seacms-13.6-security-advisories/blob/a084a3e573240d54860153321df271280daec262/c-002b-member-oldpic-file-deletion.md |
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| User | T-Chachamaru (UID 99844) |
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| Submission | 07/16/2026 09:05 (2 months ago) |
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| Moderation | 08/30/2026 08:42 (1 month later) |
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| Status | Accepted |
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| VulDB entry | 397101 [SeaCMS up to 13.6 Avatar Upload member.php?action=chgpwdsubmit unlink oldpic path traversal] |
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| Points | 19 |
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