CVE-2021-28001

5.4 mediumEPSS 1.0%

Medium (5.4) in textpattern textpattern. EPSS 1.0% chance of exploitation in the next 30 days.

A cross-site scripting vulnerability was discovered in the Comments parameter in Textpattern CMS 4.8.4 which allows remote attackers to execute arbitrary code via a crafted payload entered into the URL field. The vulnerability is triggered by users visiting https://site.com/articles/welcome-to-your-site#comments-head.

Severity

CVSS 3.1

5.4 medium

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

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-08-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

textpattern:textpattern

References

https://www.exploit-db.com/exploits/49616
https://www.exploit-db.com/exploits/49616

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