XSS in Textpattern
CVE-2021-44082
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (87.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
Affected products
- Textpattern — versions 4.8.7
Weakness classification (CWE)
References
- www.pentest.co.uk (Third Party Advisory)
- www.cornerpirate.com (Not Applicable)
- pentest.co.uk/labs/leveraging-xss-to-get-rce-in-textpattern/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-44082?
- CVE-2021-44082 is a high-severity vulnerability in Textpattern, classified under Cross-site Scripting. CVSS score: 8.3/10. Published 2022-03-29.
- How severe is CVE-2021-44082?
- High severity. CVSS v3 base score is 8.3 out of 10.