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Medium severity5.4NVD Advisory· Published Aug 19, 2021· Updated Jun 17, 2026

CVE-2021-28001

CVE-2021-28001

Description

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.

AI Insight

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Affected products

3
  • Textpattern/Textpattern2 versions
    cpe:2.3:a:textpattern:textpattern:4.8.4:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:textpattern:textpattern:4.8.4:*:*:*:*:*:*:*
    • (no CPE)range: =4.8.4
  • Textpattern/CMSdescription

Patches

Vulnerability mechanics

References

1

News mentions

0

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