CVE-2009-0312 MoinMoin Cross-site scripting (XSS) vulnerability in the antispam feature

What is CVE-2009-0312?

CVE-2009-0312 is a medium-severity cross-site scripting vulnerability in n/a, published on 28 Jan 2009. 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 in the antispam feature (security/antispam.py) in MoinMoin 1.7 and 1.8.1 allows remote attackers to inject arbitrary web script or HTML via crafted, disallowed content.

Weakness: CWE-79

Which versions are affected by CVE-2009-0312?

3 open source packages ship an affected version, including moin. It affects 1 product.

Products include Moinmoin Moinmoin.

How do I fix CVE-2009-0312?

Upgrade moin to 1.8.2 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-2009-0312 being exploited?

There is no known exploitation of CVE-2009-0312 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2004-1463 MoinMoin Improper Privilege Management Critical 10.0
• CVE-2004-1462 MoinMoin Improper Access Control High 7.5
• CVE-2004-0708 MoinMoin allows administrative access High 7.5
• CVE-2008-1937 MoinMoin vulnerable to privilege escalation Medium 6.8
• CVE-2007-2423 Cross-site scripting in n/a Medium 5.8

Sources

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

Also known as GHSA-cx94-3h5x-cc57, PYSEC-2026-676.