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MEDIUM severity

CVE-2011-1058 — moin

MEDIUM

CVE-2011-1058 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in moin. A fix is available for moin — see the affected versions and patch details below.

MoinMoin Cross-site Scripting (XSS) vulnerability

Also known asPYSEC-2011-6
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs85th percentile — riskier than 85% of all scored CVEsHighest risk
0.03%1.06%2.09%3.12%0.6%2.5%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍moin

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Cross-site scripting (XSS) vulnerability in the reStructuredText (rst) parser in parser/text_rst.py in MoinMoin before 1.9.3, when docutils is installed or when "format rst" is set, allows remote attackers to inject arbitrary web script or HTML via a javascript: URL in the refuri attribute. NOTE: some of these details are obtained from third party information.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPImoinall versions1.9.3pip install --upgrade 'moin==1.9.3'

Affected Products

1 product · 76 configurations
Application
moinmoinmoinmo
≤ 1.9.2
54 versions
0.10.20.30.40.50.60.70.80.90.100.111.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for moin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update moin to 1.9.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2011-1058 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Cross-site scripting (XSS) vulnerability in the reStructuredText (rst) parser in `parser/text_rst.py` in MoinMoin before 1.9.3, when docutils is installed or when "format rst" is set, allows remote attackers to inject arbitrary web script or HTML via a javascript: URL in the refuri attribute. NOTE: some of these details are obtained from third party information.
O3 Security · Impact-Aware SCA

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CVE-2011-1058: moin XSS — Fixed in 1.9.3