CVE-2026-91849

MEDIUM 6.3

WuzhiCMS Avatar Upload index.php setAvatar unrestricted upload

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-434 CWE-284
Vendor	n/a
Product	wuzhicms
Published	Sep 15, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / WuzhiCMS

4.0 4.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/404077 vuldb.com: https://vuldb.com/vuln/404077/cti vuldb.com: https://vuldb.com/cve/CVE-2026-91849 vuldb.com: https://vuldb.com/submit/933702 github.com: https://github.com/wuzhicms/wuzhicms/issues/219 github.com: https://github.com/wuzhicms/wuzhicms/

Credits

🔍 ZAST.AI (VulDB User) VulDB CNA Team