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NVD / CVE Program· CNA redhat

CVE-2009-2472: Mozilla Firefox before 3.0.12 does not always use XPCCrossOriginWrapper when required during object construction, which allows remote attack

Noroxi assessment

Priority: Monitor (action score 18/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 2.2% (FIRST EPSS); higher than 82.7% of all records.
  • Fixed version: xulrunner (Debian:5.0) 1.9.0.12-0lenny1; firefox (Red Hat:enterprise_linux:4::as) 0:3.0.12-1.el4; firefox-debuginfo (Red Hat:enterprise_linux:4::as) 0:3.0.12-1.el4.

Low priority for now. Upgrade to xulrunner (Debian:5.0) 1.9.0.12-0lenny1; firefox (Red Hat:enterprise_linux:4::as) 0:3.0.12-1.el4; firefox-debuginfo (Red Hat:enterprise_linux:4::as) 0:3.0.12-1.el4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Mozilla Firefox before 3.0.12 does not always use XPCCrossOriginWrapper when required during object construction, which allows remote attackers to bypass the Same Origin Policy and conduct cross-site scripting (XSS) attacks via a crafted document, related to a "cross origin wrapper bypass."

MediumCVSS 4.3 · v2.0—No exploit Fix available
Published
Jul 22, 2009
Updated
Jun 16, 2026
EPSS
2.2% · 82th percentile

Report tools

JSON

Action score

18

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
mozillafirefox
fedoraprojectfedora
suselinux enterprise debuginfo
opensuseopensuse
suselinux enterprise desktop
suselinux enterprise server

Limit the impact of XSS

This is a cross-site scripting (XSS) vulnerability. A well-configured Content-Security-Policy doesn't fix it, but greatly reduces its impact. Check your site's CSP and other security headers for free.

Check security headers

Affected versions

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

  • fedoraproject fedora10
  • mozilla firefoxbefore 3.0.12
  • opensuse opensuse11.0
  • opensuse opensuse11.1
  • suse linux enterprise debuginfo10
  • suse linux enterprise debuginfo11
  • suse linux enterprise desktop10
  • suse linux enterprise desktop11
  • suse linux enterprise server10
  • suse linux enterprise server11

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:5.0xulrunnerbefore 1.9.0.12-0lenny11.9.0.12-0lenny1
Red Hat:enterprise_linux:4::asfirefoxbefore 0:3.0.12-1.el40:3.0.12-1.el4
Red Hat:enterprise_linux:4::asfirefox-debuginfobefore 0:3.0.12-1.el40:3.0.12-1.el4
Red Hat:enterprise_linux:5::clientfirefoxbefore 0:3.0.12-1.el5_30:3.0.12-1.el5_3
Red Hat:enterprise_linux:5::clientfirefox-debuginfobefore 0:3.0.12-1.el5_30:3.0.12-1.el5_3
Red Hat:enterprise_linux:5::client_workstationxulrunnerbefore 0:1.9.0.12-1.el5_30:1.9.0.12-1.el5_3
Red Hat:enterprise_linux:5::client_workstationxulrunner-debuginfobefore 0:1.9.0.12-1.el5_30:1.9.0.12-1.el5_3
Red Hat:enterprise_linux:5::client_workstationxulrunner-develbefore 0:1.9.0.12-1.el5_30:1.9.0.12-1.el5_3
Red Hat:enterprise_linux:5::client_workstationxulrunner-devel-unstablebefore 0:1.9.0.12-1.el5_30:1.9.0.12-1.el5_3

Same product

mozilla: all records

Other highest-scoring records for the same primary product.

  • CVE-2010-3765Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x befKEV
    94Now
  • CVE-2019-11708Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxeKEV
    87Now
  • CVE-2015-4495The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypassKEV
    86Now

Published before and after this one in the same product

  • ← EarlierCVE-2009-2469Jul 22, 2009 · Mozilla Firefox before 3.0.12 does not properly handle an SVG element that has a property with a watch function and an __defineSetter__ func
    42Plan
  • ← EarlierCVE-2009-2471Jul 22, 2009 · The setTimeout function in Mozilla Firefox before 3.0.12 does not properly preserve object wrapping, which allows remote attackers to execut
    41Plan
  • Later →CVE-2009-2408Jul 30, 2009 · Mozilla Network Security Services (NSS) before 3.12.3, Firefox before 3.0.13, Thunderbird before 2.0.0.23, and SeaMonkey before 1.1.18 do no
    25Monitor

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:xulrunner1.9.0.12-0lenny1 · Debian:5.0Package registry (OSV)
red hat:firefox0:3.0.12-1.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:firefox-debuginfo0:3.0.12-1.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:xulrunner0:1.9.0.12-1.el5_3 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)
red hat:xulrunner-debuginfo0:1.9.0.12-1.el5_3 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)
red hat:xulrunner-devel0:1.9.0.12-1.el5_3 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)
red hat:xulrunner-devel-unstable0:1.9.0.12-1.el5_3 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

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.

No dated events beyond publication.

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

    Show all references (17 more)

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

    All records