CVE-2026-91849CWE-284CWE-434broken-access-controlunrestricted-file-upload

CVE-2026-91849

Medium · published September 15, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
29.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
5.3 · 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
EPSS
0.00366 · 29.2th percentile
Weaknesses
CWE-284 · Improper Access Control; CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-09-15T20:17Z
References (6)
https://github.com/wuzhicms/wuzhicms/ · [email protected]https://github.com/wuzhicms/wuzhicms/issues/219 · [email protected]https://vuldb.com/cve/CVE-2026-91849 · [email protected]https://vuldb.com/submit/933702 · [email protected]https://vuldb.com/vuln/404077 · [email protected]https://vuldb.com/vuln/404077/cti · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 15 SEP 15:30Z
    WuzhiCMS Avatar Upload index.php setAvatar unrestricted upload
    cvelistv5