PT-2022-11978 · Unknown · Textpattern

Paul Ritchie · Published 2022-03-29 · Updated 2022-04-06 · CVE-2021-44082

Positive Technologies (AI Summary)

CVSS v3.1

8.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions textpattern version 4.8.7

Description The issue allows a remote and unauthenticated attacker to trigger remote code execution by uploading a webshell via Cross Site Scripting (XSS) in the "/textpattern/index.php" endpoint, specifically in the Body parameter. To exploit this, the attacker must first steal the CSRF token before submitting a file upload request.

Recommendations For textpattern version 4.8.7, as a temporary workaround, consider disabling the file upload feature in the "/textpattern/index.php" endpoint until a patch is available. Restrict access to the Body parameter to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-44082

Affected Products

Textpattern

References · 6

• 🔥 https://pentest.co.uk/labs/leveraging-xss-to-get-rce-in-textpattern · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-44082 · Security Note
• https://osv.dev/vulnerability/CVE-2021-44082 · Vendor Advisory
• https://t.me/cibsecurity/39782 · Telegram Post
• https://cornerpirate.com · Note
• https://pentest.co.uk · Note