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CVE-2009-4924

MEDIUM · CVSS 4.3EPSS 1.4%EU EUVD

Dan Pascu python-cjson 1.0.5 does not properly handle a ['/'] argument to cjson.encode, which makes it easier for remote attackers to conduct certain cross-site scripting (XSS) attacks involving Firefox and the end tag of a SCRIPT element.

Key facts

CVSS score
4.3 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE)
CWE-79
EPSS score
1.4% (72th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2010-0028)
Published
July 2, 2010
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2010-0028 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

  • dan pascu / python-cjson

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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