XSS in Textpattern
CVE-2021-28002
A persistent cross-site scripting vulnerability was discovered in the Excerpt parameter in Textpattern CMS 4.9.0 which allows remote attackers to execute arbitrary code via a crafted payload entered into the URL field. The vulnerability is triggered by users visiting the 'Articles' page.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.011 (63.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Textpattern — versions 4.9.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49617 (Exploit, VDB Entry, Third Party Advisory)
- www.linkedin.com/in/tushar-vaidya-2111s5/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-28002?
- CVE-2021-28002 is a medium-severity vulnerability in Textpattern, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-19.
- How severe is CVE-2021-28002?
- Medium severity. CVSS v3 base score is 5.4 out of 10.