CVE-2009-0312

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.

Published: 2009-01-28 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2009-0312 is rated Moderate Risk (47.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.35%). Core evidence: EPSS rose +1.67% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-0312

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.68% 2.35% +1.67%
2 2025-05-28 0.56% 0.68% +0.12%
3 2025-03-30 0.56%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-0312

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2009-0312

GitHub Security Advisory for CVE-2009-0312

GHSA-cx94-3h5x-cc57 · Severity: medium · Ecosystem: pip — MoinMoin Cross-site scripting (XSS) vulnerability in the antispam feature

OS Trackers for CVE-2009-0312

vendor priority summary link
redhat medium https://access.redhat.com/security/cve/CVE-2009-0312
ubuntu low CVE-2009-0312 low priority: Ubuntu including 1 source packages (moin), 5 status rows across 5 suites (dapper, gutsy, hardy, intrepid, upstream): released 5. https://ubuntu.com/security/CVE-2009-0312

Affected software / configurations for CVE-2009-0312

Vendor Product Version Raw CPE
moinmoin moinmoin 1.7.0 cpe:2.3:a:moinmoin:moinmoin:1.7.0:*:*:*:*:*:*:*
moinmoin moinmoin 1.8.1 cpe:2.3:a:moinmoin:moinmoin:1.8.1:*:*:*:*:*:*:*

References for CVE-2009-0312

cvelogic Threat Intelligence