CVE-2009-0260: Multiple cross-site scripting (XSS) vulnerabilities in action/AttachFile.py in MoinMoin before 1.8.1 allow rem

Q: How do I fix CVE-2009-0260?

moinmoin: upgrade to newer than 1.8.0. Exact commands for each OS are on this page.

Q: Is CVE-2009-0260 being exploited?

CVE-2009-0260 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2009-0260 affect?

CVE-2009-0260 affects moinmoin. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in action/AttachFile.py in MoinMoin before 1.8.1 allow remote attackers to inject arbitrary web script or HTML via an AttachFile action to the WikiSandBox component with (1) the rename par

Q: How urgent is CVE-2009-0260?

Priority 43/100. EPSS top 7%: very likely to be exploited; Public exploit reference

This month

MEDIUM 4.3UPGRADE

CVE-2009-0260 is a medium-severity flaw (CVSS 4.3) affecting moinmoin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in action/AttachFile.py in MoinMoin before 1.8.1 allow remote attackers to inject arbitrary web script or HTML via an AttachFile action to the WikiSandBox component with (1) the rename parameter or (2) the drawing parameter (aka the basename variable).

Why this priority

EPSS top 7%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	5.5% (top 7%)
CISA exploited list	No
Weakness	CWE-79
Published	2009-01-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: moinmoin

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2009-01-23 19:00 UTCPublished CVE record published
2026-06-16 23:04 UTCUpdated Record last modified

moinmoin moinmoin UPGRADE

Affected: <= 1.8.0 · 0.1 · 0.2 · 0.3 · 0.7 · 0.8 · 0.9 · 0.10

Fixed in: newer than 1.8.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy moinmoin || rpm -q moinmoin || moinmoin --version

2. UPGRADE to newer than 1.8.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade moinmoin

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade moinmoin

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: MoinMoin 1.8 - 'AttachFile.py' Cross-Site Scripting

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2009-0260?

moinmoin: upgrade to newer than 1.8.0. Exact commands for each OS are on this page.

Is CVE-2009-0260 being exploited?

CVE-2009-0260 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2009-0260 affect?

CVE-2009-0260 affects moinmoin. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in action/AttachFile.py in MoinMoin before 1.8.1 allow remote attackers to inject arbitrary web script or HTML via an AttachFile action to the WikiSandBox component with (1) the rename par

How urgent is CVE-2009-0260?

Priority 43/100. EPSS top 7%: very likely to be exploited; Public exploit reference

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References

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