CVE-2021-28001 — MEDIUM (5.4)

Vulnerability 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.

CVSS Score

5.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Textpattern	Textpattern	4.8.4

Related Weaknesses (CWE)

CWE-79

References

https://www.exploit-db.com/exploits/49616ExploitThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/49616ExploitThird Party AdvisoryVDB Entry

FAQ

What is CVE-2021-28001?

CVE-2021-28001 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 UR...

How severe is CVE-2021-28001?

CVE-2021-28001 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-28001?

Check the references section above for vendor advisories and patch information. Affected products include: Textpattern Textpattern.