CVE-2026-58143 | Cotonti Siena 0.9.26 and earlier contains a cross-site reque… | CVSS 8.8 HIGH

Description

Cotonti Siena 0.9.26 and earlier contains a cross-site request forgery vulnerability that allows unauthenticated attackers to modify administrator configuration by tricking a logged-in administrator into submitting a forged POST request to the admin.php config update handler, which never invokes the application's CSRF validation function. Attackers can disable the PFS module's file extension whitelist by setting pfsfilecheck to 0, enabling any user with PFS access to upload and execute arbitrary PHP files on the server.

Metadata

CVE ID: CVE-2026-58143
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-06-29 14:13 UTC
Published: 2026-07-09 22:04 UTC
Last updated: 2026-07-09 22:07 UTC
Primary CWE: CWE-352
Cross-Site Request Forgery (CSRF)
Vendor / Product: Cotonti / Cotonti
Sources: cve.org · NVD

Severity & Metrics

8.8 HIGH CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
Cotonti	Cotonti	—	0 ≤ 0.9.26

Weakness (CWE)

CWE	Source	Description
CWE-352	cna	Cross-Site Request Forgery (CSRF)

CVSS scores (2)

Score	Severity	Version	Source	Vector
8.8	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.7	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References (2)