CVE-2021-33988

Name: CVE-2021-33988
Creator: NVD / NIST
Published: 2021-10-19T17:15:07.107+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.03%

Last modified Jun 17, 2026

CVE-2021-33988 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.. EPSS estimates a 1.03% chance of exploitation in the next 30 days.

Description

Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.03%

59.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Microweber	Microweber	1.2.7

References

https://github.com/nck0099/osTicket/issues/2Exploit, Third Party Advisory
https://github.com/nck0099/osTicket/issues/2Exploit, Third Party Advisory

Timeline

Published: Oct 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33988?

Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.

How severe is CVE-2021-33988?

CVE-2021-33988 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33988?

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-2021-33988?

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

Scan your code now

Source: NVD / NIST