CVE-2026-2543

vichan-devel vichan Password Change pages.php unverified password change

Assigner: VulDB
Reserved: 15.02.2026 Published: 16.02.2026 Updated: 16.02.2026

A vulnerability was identified in vichan-devel vichan up to 5.1.5. This vulnerability affects unknown code of the file inc/mod/pages.php of the component Password Change Handler. The manipulation of the argument Password leads to unverified password change. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	High
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:R
CVSS Score: 2.7

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	High	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:R
CVSS Score: 2.7

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	High	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:M/C:N/I:P/A:N/E:ND/RL:ND/RC:UR
CVSS Score: 3.3

Access Vector	Network	Confidentiality Impact	None
Access Complexity	Low	Integrity Impact	Partial
Authentication	Multiple	Availability Impact	None

CVSS 2.0

Product Status

Vendor	vichan-devel
Product	vichan
Versions	Version 5.1.0 is affected Version 5.1.1 is affected Version 5.1.2 is affected Version 5.1.3 is affected Version 5.1.4 is affected Version 5.1.5 is affected

Vendor

vichan-devel

Product

vichan

Versions

Version 5.1.0 is affected
Version 5.1.1 is affected
Version 5.1.2 is affected
Version 5.1.3 is affected
Version 5.1.4 is affected
Version 5.1.5 is affected

Credits

lakshay12311 (VulDB User) reporter

References

Problem Types