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CVE-2026-91849— WuzhiCMS Avatar Upload index.php setAvatar unrestricted upload

Quick assessment

Affected

n/a WuzhiCMS

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

wuzhicms是wuzhicms个人开发者开源的一套内容管理系统。 wuzhicms 4.1.0及之前版本存在安全漏洞，该漏洞源于Avatar Upload组件中文件/index.php?m=member&f=user&v=setAvatar的函数member::setAvatar对参数File操作不当，导致无限制文件上传，攻击者可远程利用。

CVSS 6.3 · Medium EPSS 0.37% · P30 Updated Sep 17, 2026

Possible ATT&CK Techniques 1 AI

T1067

Affected Version Matrix 2

Vendor	Product	Version Range	Status
n/a	WuzhiCMS	`4.0`	affected
		`4.1.0`	affected

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I. Basic Information for CVE-2026-91849

Vulnerability Information

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Vulnerability Title

WuzhiCMS Avatar Upload index.php setAvatar unrestricted upload

Source: CVE Program / CVE List V5

Vulnerability 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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Source: CVE Program / CVE List V5

Vulnerability Type

危险类型文件的不加限制上传

Source: CVE Program / CVE List V5

Vulnerability Title

wuzhicms 权限许可和访问控制问题漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
-	WuzhiCMS	4.0	`cpe:2.3:a:wuzhicms:wuzhicms::::::::`

II. Public POCs for CVE-2026-91849

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-91849

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Proof of Concept for CVE-2026-91849 (1)

🔗 Arbitrary File Upload (RCE) · Issue #219 · wuzhicms/wuzhicms Read full article exploit issue-tracking

Vendor Pages for CVE-2026-91849 (1)

🔗 GitHub - wuzhicms/wuzhicms: php 内容管理系统 · GitHub Read full article product

https://www.cve.org/CVERecord?id=CVE-2026-91849

Same Patch Batch · n/a · 2026-09-15 · 34 CVEs total

CVE-2026-91848	7.3 HIGH	WuzhiCMS index.php getDataOfJson sql injection
CVE-2026-91087	7.3 HIGH	GPAC Compositor media_object.c gf_mo_get_od_id use after free
CVE-2026-91089	6.3 MEDIUM	GPAC base_scenegraph.c gf_node_get_name_and_id use after free
CVE-2026-91086	6.3 MEDIUM	GPAC MPEG Video Reframer reframe_mpgvid.c mpgviddmx_process heap-based overflow
CVE-2026-91855	5.3 MEDIUM	Open5GS PFCP Message handler.c denial of service
CVE-2026-91088	4.8 MEDIUM	GPAC URL url.c gf_url_concatenate_ex heap-based overflow
CVE-2026-91091	4.3 MEDIUM	GPAC Node Insertion base_scenegraph.c gf_node_list_insert_child memory corruption
CVE-2026-91090	3.9 LOW	GPAC base_scenegraph.c gf_node_activate_ex stack-based overflow
CVE-2026-52484		MitraStar GPT-2742GL_g2.5远程代码执行漏洞
CVE-2026-51133		za-internet C-MOR ≤6.0104 跨站脚本漏洞
CVE-2025-66974		Prolink DS-3202M-UKv3 设备拒绝服务漏洞
CVE-2026-39040		BharatMLStack 1.3.0 Trufflebox UI XSS漏洞
CVE-2026-39038		BharatMLStack v1.3.0 存在XSS漏洞
CVE-2026-39039		BharatMLStack≤1.3.0 localStorage泄露敏感会话信息
CVE-2026-79409		Bagisto 2.4.9 信息泄露漏洞
CVE-2026-88742		Bacularis 安全漏洞
CVE-2026-88743		Bacularis 安全漏洞
CVE-2026-79411		Bagisto 2.4.9 权限提升至管理员漏洞
CVE-2026-79410		Bagisto v2.4.9购物车参数校验缺陷致订单总价降低
CVE-2026-51134		C-MOR 6.0104 视频监控系统路径遍历

Showing top 20 of 34 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: WuzhiCMS

Same vendor: n/a

Same weakness: CWE-434