CVE-2026-116822

MEDIUM CVSS 4.0: 6.9 EPSS 0.21%
Updated Oct 27, 2026
Yeswiki
Parameter Value
CVSS 6.9 (MEDIUM)
Affected Versions before 4.7.0
Fixed In 4.7.0
Type CWE-73 (External Control of File Name or Path)
Vendor Yeswiki
Public PoC No

YesWiki before 4.7.0 contains a path traversal vulnerability in BazarListeAction that allows unauthenticated attackers to select arbitrary templates within the @bazar Twig namespace via the template GET parameter. Attackers can append crafted template values to pages containing the bazarliste action to force unintended layouts, causing page defacement for visitors following the crafted link.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Yeswiki Yeswiki
cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:*
— 4.7.0