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PromptShopMCP CVE-2026-74842

| EUVDEUVD-2026-60078 LOW
Server-Side Request Forgery (SSRF) (CWE-918)
2026-08-17 VulDB GHSA-644r-p44g-r6g9
2.1
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.1 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
5.4 MEDIUM

Network-reachable SSRF requiring authenticated access (PR:L); low C and I for internal data disclosure and potential state-modifying internal requests; no availability impact from standard SSRF.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
Analysis Generated
Aug 17, 2026 - 13:38 vuln.today
Severity Changed
Aug 17, 2026 - 11:22 NVD
MEDIUM LOW
CVSS changed
Aug 17, 2026 - 11:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
CVE Published
Aug 17, 2026 - 10:30 cve.org
LOW 2.1

DescriptionCVE.org

A vulnerability was found in Kira-Pgr PromptShopMCP up to 5bc0cd17358e19a5415d11a531088170d7b81452. Affected is the function download_image of the file server.py of the component Image-Toolkit-MCP-Server. Performing a manipulation of the argument image_url results in server-side request forgery. The attack may be initiated remotely. The exploit has been made public and could be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.

AnalysisAI

Server-side request forgery in PromptShopMCP's Image-Toolkit-MCP-Server exposes internal network resources via the download_image function in server.py, where insufficient validation of the image_url argument allows an authenticated remote attacker to direct the server to make arbitrary HTTP requests. All commits up to 5bc0cd17358e19a5415d11a531088170d7b81452 are affected, and a public exploit exists via GitHub issue #4. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain authenticated MCP server access
Delivery
Craft malicious image_url targeting internal resource
Exploit
Invoke download_image function with crafted argument
Execution
Server issues HTTP request from its network context
Impact
Receive internal network response containing sensitive data

Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to hold at least low-privilege authenticated access (PR:L per the CVSS 4.0 vector) to invoke the download_image function on the PromptShopMCP Image-Toolkit-MCP-Server. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 2.1 is exceptionally low, reflecting limited per-system impact (VC:L/VI:L/VA:L) with no subsequent-system impact (SC:N/SI:N/SA:N) and the PR:L authentication prerequisite - signals that temper urgency. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated user of the PromptShopMCP server submits a crafted call to the download_image function with image_url set to an internal target such as http://169.254.169.254/latest/meta-data/iam/security-credentials/ or an internal microservice endpoint. The server issues the request from its privileged network position and returns the response to the attacker, potentially disclosing cloud IAM credentials or internal API data. …
Remediation No vendor-released patch has been identified at time of analysis; the vendor has not responded to the issue disclosure. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-74842 vulnerability details – vuln.today

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