CVE-2021-36440 — CRITICAL (9.8)

Vulnerability Description

Unrestricted File Upload in ShowDoc v2.9.5 allows remote attackers to execute arbitrary code via the 'file_url' parameter in the component AdminUpdateController.class.php'.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Showdoc	Showdoc	2.9.5

Related Weaknesses (CWE)

CWE-434

References

https://github.com/star7th/showdoc/issues/1406ExploitIssue TrackingThird Party Advisory
https://github.com/star7th/showdoc/issues/1406ExploitIssue TrackingThird Party Advisory

FAQ

What is CVE-2021-36440?

CVE-2021-36440 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Unrestricted File Upload in ShowDoc v2.9.5 allows remote attackers to execute arbitrary code via the 'file_url' parameter in the component AdminUpdateController.class.php'.

How severe is CVE-2021-36440?

CVE-2021-36440 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-36440?

Check the references section above for vendor advisories and patch information. Affected products include: Showdoc Showdoc.