CVE-2026-108591 (CVSS 4.4)

Description

InnoShop 0.9.2 contains a local file disclosure vulnerability that allows authenticated administrators with files_create permission to read server files by abusing the AI Core MCP file_upload tool's source argument. Attackers can supply file:// or php:// stream wrappers passed to file_get_contents(), storing contents on the public media disk to expose the .env file with APP_KEY and database credentials.

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CVSS v3.1 Score

4.4

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0027

Probability of exploitation

0.18%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-73 CWE-73

References

Other References

https://github.com/innocommerce/innoshop https://github.com/innocommerce/innoshop/blob/6af6a9744414d10d2f5aab516ed0b6c3045a2848/innopacks/aicore/src/Tools/FileUploadTool.php#L55-L89 https://github.com/innocommerce/innoshop/blob/6af6a9744414d10d2f5aab516ed0b6c3045a2848/innopacks/restapi/src/Services/UploadService.php#L33 https://hackmd.io/@haind/innoshop-mcp-local-file-read https://www.vulncheck.com/advisories/innoshop-0.9.2-local-file-disclosure-via-ai-core-mcp-file-upload-tool

Frequently Asked Questions

What is CVE-2026-108591? +

InnoShop 0.9.2 contains a local file disclosure vulnerability that allows authenticated administrators with files_create permission to read server files by abusing the AI Core MCP file_upload tool's source argument. Attackers can supply file:// or php:// stream wrappers passed to file_get_contents(), storing contents on the public media disk to expose the .env file with APP_KEY and database credentials. It has a CVSS v3.1 base score of 4.4 (MEDIUM).

How severe is CVE-2026-108591? +

CVE-2026-108591 has a CVSS v3.1 score of 4.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0027, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-108591? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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