CVE-2021-33988 Cross Site Scripting in Microweber

What is CVE-2021-33988?

CVE-2021-33988 is a medium-severity cross-site scripting vulnerability in Microweber Microweber, published on 19 Oct 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-79

Which versions are affected by CVE-2021-33988?

2 open source packages ship an affected version, including microweber/microweber. It affects 1 product.

Products include Microweber Microweber.

How do I fix CVE-2021-33988?

Upgrade microweber/microweber to 1.2.8 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-33988 being exploited?

There is no known exploitation of CVE-2021-33988 in the wild and no public exploit code.

Other vulnerabilities in Microweber Microweber

• CVE-2022-0558 Cross-site Scripting (XSS) - Stored in microweber/microweber Critical 9.8
• CVE-2020-23138 File upload in n/a Critical 9.8
• CVE-2022-0688 Business Logic Errors in microweber/microweber Critical 9.4
• CVE-2022-0660 Generation of Error Message Containing Sensitive Information in microweber/microweber Critical 9.4
• CVE-2022-0913 Integer Overflow or Wraparound in microweber/microweber Critical 9.1

All Microweber Microweber vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-w7x8-cq7r-g5g9.