CVE-2021-27673

Name: CVE-2021-27673
Creator: NVD / NIST
Published: 2021-04-15T14:15:16.92+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 1.09%

Last modified Jun 17, 2026

CVE-2021-27673 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Cross Site Scripting (XSS) in the "admin_boxes.ajax.php" component of Tribal Systems Zenario CMS v8.8.52729 allows remote attackers to execute arbitrary code by injecting arbitrary HTML into the "cID" parameter when creating a new HTML component.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

Description

Cross Site Scripting (XSS) in the "admin_boxes.ajax.php" component of Tribal Systems Zenario CMS v8.8.52729 allows remote attackers to execute arbitrary code by injecting arbitrary HTML into the "cID" parameter when creating a new HTML component.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

1.09%

61.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Tribalsystems	Zenario	8.8.52729

References

http://packetstormsecurity.com/files/163083/Zenario-CMS-8.8.52729-SQL-Injection.htmlExploit, Third Party Advisory, VDB Entry
https://deadsh0t.medium.com/blind-error-based-authenticated-sql-injection-on-zenario-8-8-52729-cms-d4705534df38Exploit, Third Party Advisory
http://packetstormsecurity.com/files/163083/Zenario-CMS-8.8.52729-SQL-Injection.htmlExploit, Third Party Advisory, VDB Entry
https://deadsh0t.medium.com/blind-error-based-authenticated-sql-injection-on-zenario-8-8-52729-cms-d4705534df38Exploit, Third Party Advisory

Timeline

Published: Apr 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27673?

How severe is CVE-2021-27673?

CVE-2021-27673 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27673?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27673?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST