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Vulnerability Details :

CVE-2026-9304

Summary
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
Published At-23 May, 2026 | 13:45
Updated At-23 May, 2026 | 13:45
Rejected At-
Credits

calcom cal.diy Logo API route.ts validateUrlForSSRF server-side request forgery

A security flaw has been discovered in calcom cal.diy up to 4.9.4. The affected element is the function validateUrlForSSRF of the file apps/web/app/api/logo/route.ts of the component Logo API. The manipulation results in server-side request forgery. It is possible to launch the attack remotely. Attacks of this nature are highly complex. The exploitability is described as difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulDB
Assigner Org ID:1af790b2-7ee1-4545-860a-a788eba489b5
Published At:23 May, 2026 | 13:45
Updated At:23 May, 2026 | 13:45
Rejected At:
▼CVE Numbering Authority (CNA)
calcom cal.diy Logo API route.ts validateUrlForSSRF server-side request forgery

A security flaw has been discovered in calcom cal.diy up to 4.9.4. The affected element is the function validateUrlForSSRF of the file apps/web/app/api/logo/route.ts of the component Logo API. The manipulation results in server-side request forgery. It is possible to launch the attack remotely. Attacks of this nature are highly complex. The exploitability is described as difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected Products
Vendor
calcom
Product
cal.diy
CPEs
  • cpe:2.3:a:calcom:cal.diy:*:*:*:*:*:*:*:*
Modules
  • Logo API
Versions
Affected
  • 4.9.0
  • 4.9.1
  • 4.9.2
  • 4.9.3
  • 4.9.4
Problem Types
TypeCWE IDDescription
CWECWE-918Server-Side Request Forgery
Type: CWE
CWE ID: CWE-918
Description: Server-Side Request Forgery
Metrics
VersionBase scoreBase severityVector
4.02.3LOW
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.15.0MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
3.05.0MEDIUM
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
2.04.6N/A
AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Version: 4.0
Base score: 2.3
Base severity: LOW
Vector:
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 5.0
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Version: 3.0
Base score: 5.0
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Version: 2.0
Base score: 4.6
Base severity: N/A
Vector:
AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
Eric-z (VulDB User)
coordinator
VulDB CNA Team
Timeline
EventDate
Advisory disclosed2026-05-22 00:00:00
VulDB entry created2026-05-22 02:00:00
VulDB entry last update2026-05-22 20:00:01
Event: Advisory disclosed
Date: 2026-05-22 00:00:00
Event: VulDB entry created
Date: 2026-05-22 02:00:00
Event: VulDB entry last update
Date: 2026-05-22 20:00:01
Replaced By
Rejected Reason
References
HyperlinkResource
https://vuldb.com/vuln/365251
vdb-entry
technical-description
https://vuldb.com/vuln/365251/cti
signature
permissions-required
https://vuldb.com/submit/812176
third-party-advisory
https://gist.github.com/YLChen-007/b3d0b85767b7e346a291933d602fbb3b
exploit
Hyperlink: https://vuldb.com/vuln/365251
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/vuln/365251/cti
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/submit/812176
Resource:
third-party-advisory
Hyperlink: https://gist.github.com/YLChen-007/b3d0b85767b7e346a291933d602fbb3b
Resource:
exploit
Information is not available yet

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1Records found
CVE-2025-9799
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-2.3||LOW
EPSS-0.06% / 19.82%
||
7 Day CHG+0.01%
Published-01 Sep, 2025 | 22:02
Updated-02 Dec, 2025 | 19:04
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Langfuse Webhook promptRouter.ts promptChangeEventSourcing server-side request forgery

A security flaw has been discovered in Langfuse up to 3.88.0. Affected by this vulnerability is the function promptChangeEventSourcing of the file web/src/features/prompts/server/routers/promptRouter.ts of the component Webhook Handler. Performing manipulation results in server-side request forgery. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitation appears to be difficult. The exploit has been released to the public and may be exploited.

Action-Not Available
Vendor-langfusen/a
Product-langfuseLangfuse
CWE ID-CWE-918
Server-Side Request Forgery (SSRF)
Details not found