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CVE-2009-2820· NVD / CVE Program· CNA mitre

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 heade

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.

MediumCVSS 4.3 · v2.0—Proof of concept Fix available
Published
Nov 10, 2009
Updated
Jun 16, 2026
EPSS
5.8% · 93th percentile
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Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 5.8%

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
applemac os x
applemac os x server

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apple mac os xup to 10.6.1 inclusive
  • apple mac os x10.0
  • apple mac os x10.0.0
  • apple mac os x10.0.1
  • apple mac os x10.0.2
  • apple mac os x10.0.3
  • apple mac os x10.0.4
  • apple mac os x10.1
  • apple mac os x10.1.0
  • apple mac os x10.1.1
  • apple mac os x10.1.2
  • apple mac os x10.1.3
  • apple mac os x10.1.4
  • apple mac os x10.1.5
  • apple mac os x10.2
  • apple mac os x10.2.0
  • apple mac os x10.2.1
  • apple mac os x10.2.2
  • apple mac os x10.2.3
  • apple mac os x10.2.4

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12cupsbefore 1.4.2-11.4.2-1
Debian:4.0cupsysbefore 1.2.7-4+etch91.2.7-4+etch9
Debian:5.0cupsbefore 1.3.8-1+lenny71.3.8-1+lenny7
openSUSE:Tumbleweedcupsbefore 2.1.3-2.32.1.3-2.3
Red Hat:enterprise_linux:5::clientcups-libsbefore 1:1.3.7-11.el5_4.41:1.3.7-11.el5_4.4
Red Hat:enterprise_linux:5::clientcups-lpdbefore 1:1.3.7-11.el5_4.41:1.3.7-11.el5_4.4
Red Hat:enterprise_linux:5::client_workstationcupsbefore 1:1.3.7-11.el5_4.41:1.3.7-11.el5_4.4
Red Hat:enterprise_linux:5::client_workstationcups-debuginfobefore 1:1.3.7-11.el5_4.41:1.3.7-11.el5_4.4
Red Hat:enterprise_linux:5::client_workstationcups-develbefore 1:1.3.7-11.el5_4.41:1.3.7-11.el5_4.4

Same product

apple: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-30657A logic issue was addressed with improved state management.KEV
    73This week
  • CVE-2015-1130The XPC implementation in Admin Framework in Apple OS X before 10.10.3 allows local users to bypass authentication and obtain admin privilegKEV
    64This week
  • CVE-2021-30713A permissions issue was addressed with improved validation.KEV
    63This week
  • CVE-2019-8526A use after free issue was addressed with improved memory management.KEV
    61This week
  • CVE-2022-22674An out-of-bounds read issue existed that led to the disclosure of kernel memory.KEV
    52Plan
  • CVE-2007-2386Buffer overflow in mDNSResponder in Apple Mac OS X 10.4 up to 10.4.9 allows remote attackers to cause a denial of service (application termi
    52Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:cups1.4.2-1 · Debian:12Package registry (OSV)
debian:cupsys1.2.7-4+etch9 · Debian:4.0Package registry (OSV)
opensuse:cups2.1.3-2.3 · openSUSE:TumbleweedPackage registry (OSV)
red hat:cups1:1.3.7-11.el5_4.4 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)
red hat:cups-debuginfo1:1.3.7-11.el5_4.4 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)
red hat:cups-devel1:1.3.7-11.el5_4.4 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)
red hat:cups-libs1:1.3.7-11.el5_4.4 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:cups-lpd1:1.3.7-11.el5_4.4 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2009-11-11

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoCsame day
  3. TodayOct 6, 2026+6174 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    none
    Integrity
    P · data or configuration can be modified
    Availability
    none
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    P
    Availability impact
    None

    Weakness class (CWE)

    CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

    CVSS vector

    AV:N/AC:M/Au:N/C:N/I:P/A:N

    nvd-primary

    Root cause

    User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

    The bug in code

    The whole CWE-79 class

    A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

    Vulnerable

    ts
    commentEl.innerHTML = comment.body;

    Fixed

    ts
    commentEl.textContent = comment.body;

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    ATT&CK techniques

    —

    Change log

    1. Fix✗ → ✓

    For records you follow, these changes also arrive as notifications. →

    References

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records