CVE-2021-28001

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.

CVSS v3.1

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

CVSS v2.0

3.5 LOWAV:N/AC:M/Au:S/C:N/I:P/A:N

EPSS

1.02% chance of exploitation in the next 30 days, 61th percentile

Published

2021-08-19

Updated

2024-08-03

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2021-28000
• CVE-2021-28002
• CVE-2021-27990
• CVE-2021-28006
• CVE-2021-27989
• CVE-2021-28007