CVE-2026-91849
WuzhiCMS Avatar Upload index.php setAvatar unrestricted upload
- State
- Published
- Severity
- 5.3 Medium
- Published
- Sep 15, 2026
- Updated
- Sep 17, 2026
- Reserved
- Sep 15, 2026
Description
A security flaw has been discovered in WuzhiCMS up to 4.1.0. This affects the function member::setAvatar of the file /index.php?m=member&f=user&v=setAvatar of the component Avatar Upload. The manipulation of the argument File results in unrestricted upload. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WuzhiCMSn/a |
|
References
- VDB-404077 | WuzhiCMS Avatar Upload index.php setAvatar unrestricted uploadvdb-entrytechnical-description
- VDB-404077 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-91849 | CVE Analysis and Reportthird-party-advisory
- Submit #933702 | wuzhicms <=4.1.0 Arbitrary File Write (RCE)third-party-advisory
- https://github.com/wuzhicms/wuzhicms/issues/219exploitissue-tracking
- https://github.com/wuzhicms/wuzhicms/product
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