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Not in CISA KEV
MEDIUM severity

CVE-2005-4644 — trac

MEDIUM

CVE-2005-4644 is a medium-severity (CVSS 6.1) vulnerability in trac. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for trac — see the affected versions and patch details below.

Trac HTML WikiProcessor cross-site scripting (XSS) vulnerability

Also known asGHSA-6vhp-hp77-6w52PYSEC-2005-1
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs75th percentile — riskier than 75% of all scored CVEsHighest risk
0.16%0.78%1.40%2.02%0.7%1.5%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
🐍trac

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 HTML WikiProcessor in Edgewall Trac 0.9.2 allows remote attackers to inject arbitrary web script or HTML via javascript in the SRC attribute of an IMG tag.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPItracall versions0.9-stablepip install --upgrade 'trac==0.9-stable'

Affected Products

1 product · 1 configurations
Application
tracedgewall_software
1 version
0.9.2
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Cross-site scripting (XSS) vulnerability in the HTML WikiProcessor in Ed…

projects.edgewall.comNVDJul 2017

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update trac to 0.9-stable or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2005-4644 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 HTML WikiProcessor in Edgewall Trac 0.9.2 allows remote attackers to inject arbitrary web script or HTML via javascript in the SRC attribute of an IMG tag.
O3 Security · Impact-Aware SCA

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CVE-2005-4644: trac XSS — Fixed in 0.9-stable