VULNERABILITY INTELLIGENCE

CVE-2021-28002

CVSS score5.4 MEDIUM

EPSS probability1.07%

CISA KEVNot currently listed

Published2021-08-19

Last modified2026-06-17

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

Description

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.

Weakness classification

nvd@nist.gov: CWE-79

Primary references

cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
cve@mitre.org — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory