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CVE-2026-41455

WeKan < 8.35 SSRF via Webhook URL

Published: Apr 22, 2026Updated: May 26, 2026 Sources: CVE List NVDCWE-918
NVD MITRE
8.5CVSSHIGH
EPSS Score
0.2%
Top 85.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

WeKan before 8.35 contains a server-side request forgery vulnerability in webhook integration URL handling where the URL scheme field accepts any string without protocol restriction or destination validation. Attackers who can create or modify integrations can set webhook URLs to internal network addresses, causing the server to issue HTTP POST requests to attacker-controlled internal targets with full board event payloads, and can additionally exploit response handling to overwrite arbitrary comment text without authorization checks.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-918

Affected Products

wekanwekan
On-prem
Enterprise Software / collaboration-groupware
wekanoss-projectEnterprise Software

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://github.com/wekan/wekan/commit/2cd702f48df2b8aef0e7381685f8e089986a18a4
github.com
https://github.com/wekan/wekan/releases/tag/v8.35
github.com
https://www.vulncheck.com/advisories/wekan-ssrf-via-webhook-url
vulncheck.com

Timeline

Published
Apr 22, 2026
Last Updated
May 26, 2026

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