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.

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)

EPSS: 0.028 (85.2th percentile) — read the EPSS interpretation.

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.

Affected products

Textpattern — versions 4.8.7
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_MISC, Not Applicable)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

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.