MoinMoin Cross-Site Scripting (XSS) Vulnerability in Moin

moin Updated 02 Oct 2025

Summary

01/05/2022
Yes i
Moderate
Not published

CVE-2007-0901: MoinMoin Cross-Site Scripting (XSS) vulnerability via hitcounts and general parameters. Affects moin versions < 1.5.8. Fixed in 1.5.8. How to fix ↓

Also tracked for

The same CVE-2007-0901 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.

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Background

MoinMoin is an open-source wiki engine written in Python. It provides a platform for collaborative content creation and editing. The vulnerability in MoinMoin version 1.5.7 allows remote attackers to inject arbitrary web script or HTML through the hitcounts and general parameters. This vulnerability is different from CVE-2007-0857, and its provenance is unknown.

Vulnerability Detail

The MoinMoin vulnerability is classified as a Cross-Site Scripting (XSS) issue. It enables attackers to insert malicious web scripts or HTML code into Info pages. The vectors for exploitation are the hitcounts and general parameters. This vulnerability can have severe consequences, including unauthorized access, data theft, and potential compromise of user accounts. It is important to note that the details of this vulnerability are obtained solely from third-party information.

How To Fix

Latest published version: 1.9.11 as of 22 Oct 2026

pip install --upgrade "moin==1.9.11"

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.5.8

This is the first release that contains the fix.

pip install --upgrade "moin==1.5.8"

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Workaround

There is no specific workaround mentioned for this vulnerability. However, it is crucial to follow best practices for web application security, such as input validation and output encoding, to minimize the risk of XSS attacks. Implementing proper input sanitization and output encoding techniques can help prevent the execution of malicious scripts or HTML code.

Conclusion

The MoinMoin Cross-Site Scripting (XSS) vulnerability in version 1.5.7 can have severe consequences, including unauthorized access and data theft. It is recommended to upgrade to version 1.5.8 or later to fix the vulnerability. Following web application security best practices is also essential to minimize the risk of XSS attacks. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ

The vulnerability allows attackers to inject arbitrary web script or HTML, potentially leading to unauthorized access, data theft, and compromise of user accounts.

Yes, upgrading to MoinMoin version 1.5.8 or later fixes the vulnerability by implementing necessary patches and security enhancements.

While no specific workaround is mentioned, following web application security best practices, such as input validation and output encoding, can help mitigate the risk of XSS attacks.

Yes, remote attackers can exploit this vulnerability by injecting malicious web scripts or HTML through the hitcounts and general parameters.

The provenance of this vulnerability is unknown, and there is no specific information available regarding active exploits. However, it is crucial to address the vulnerability promptly to prevent potential attacks.

Related vulnerabilities

Recent vulnerabilities recorded for moin.

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How To Fix

Latest published version: 1.9.11 as of 22 Oct 2026

pip install --upgrade "moin==1.9.11"

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.5.8

This is the first release that contains the fix.

pip install --upgrade "moin==1.5.8"

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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