$ cve CVE-2009-2820 JSON

CVE-2009-2820 EXPLOIT

4.3

MEDIUM · CVSS 2.0 · EPSS 5.8% (pctl 93)

Patch early

A public exploit exists.

Description

The web interface in CUPS before 1.4.2, as used on Apple Mac OS X before 10.6.2 and other platforms, does not properly handle (1) HTTP headers and (2) HTML templates, which allows remote attackers to conduct cross-site scripting (XSS) attacks and HTTP response splitting attacks via vectors related to (a) the product's web interface, (b) the configuration of the print system, and (c) the titles of printed jobs, as demonstrated by an XSS attack that uses the kerberos parameter to the admin program, and leverages attribute injection and HTTP Parameter Pollution (HPP) issues.

Scoring

CVSS	4.3 (MEDIUM, v2.0)
Vector	AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS	5.78% — more likely to be exploited than 93% of all CVEs
Weakness	CWE-79
On CISA KEV	no
Public exploit	yes
Published	2009-11-10
Last modified	2026-06-16

Affected (2)

Vendor	Product
apple	mac os x
apple	mac os x server

Public exploits

Source	Title	Date
exploit-db	CUPS - 'kerberos' Cross-Site Scripting	2009-11-11

References

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