CVE-2021-44082 — HIGH (8.3)

Vulnerability Description

textpattern 4.8.7 is vulnerable to Cross Site Scripting (XSS) via /textpattern/index.php,Body. A remote and unauthenticated attacker can use XSS to trigger remote code execution by uploading a webshell. To do so they must first steal the CSRF token before submitting a file upload request.

CVSS Score

8.3

HIGH

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Textpattern	Textpattern	4.8.7

Related Weaknesses (CWE)

CWE-79

References

https://pentest.co.uk/labs/leveraging-xss-to-get-rce-in-textpattern/ExploitThird Party Advisory
https://www.cornerpirate.comNot Applicable
https://www.pentest.co.ukThird Party Advisory
https://pentest.co.uk/labs/leveraging-xss-to-get-rce-in-textpattern/ExploitThird Party Advisory
https://www.cornerpirate.comNot Applicable
https://www.pentest.co.ukThird Party Advisory

FAQ

What is CVE-2021-44082?

CVE-2021-44082 is a vulnerability with a CVSS score of 8.3 (HIGH). textpattern 4.8.7 is vulnerable to Cross Site Scripting (XSS) via /textpattern/index.php,Body. A remote and unauthenticated attacker can use XSS to trigger remote code execution by uploading a webshel...

How severe is CVE-2021-44082?

CVE-2021-44082 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-44082?

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