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NVD / CVE Program· CNA mitre

CVE-2004-0191: Mozilla before 1.4.2 executes Javascript events in the context of a new page while it is being loaded, allowing it to interact with the…

MediumCVSS 6.8 · v2.0—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 27/100)

  • 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: 1.6% (FIRST EPSS); higher than 76.3% of all records.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

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 before 1.4.2 executes Javascript events in the context of a new page while it is being loaded, allowing it to interact with the previous page (zombie document) and enable cross-domain and cross-site scripting (XSS) attacks, as demonstrated using onmousemove events.

Published
Mar 15, 2004
Updated
Jun 16, 2026
EPSS
1.6% · 76th percentile
CWE
—

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.6%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2004-0191

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
mozillamozilla

Affected versions

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

  • mozilla mozilla0.8
  • mozilla mozilla0.9.2
  • mozilla mozilla0.9.2.1
  • mozilla mozilla0.9.3
  • mozilla mozilla0.9.35
  • mozilla mozilla0.9.4
  • mozilla mozilla0.9.4.1
  • mozilla mozilla0.9.48
+12 more rows
  • mozilla mozilla0.9.5
  • mozilla mozilla0.9.6
  • mozilla mozilla0.9.7
  • mozilla mozilla0.9.8
  • mozilla mozilla0.9.9
  • mozilla mozilla1.0
  • mozilla mozilla1.0.1
  • mozilla mozilla1.0.2
  • mozilla mozilla1.1
  • mozilla mozilla1.2
  • mozilla mozilla1.2.1
  • mozilla mozilla1.3

Same product

mozilla: all records

Other highest-scoring records for the same primary product.

  • CVE-2004-0722Integer overflow in the SOAPParameter object constructor in (1) Netscape version 7.0 and 7.1 and (2) Mozilla 1.6, and possibly earlier…
    44Plan
  • CVE-2004-0903Stack-based buffer overflow in the writeGroup function in nsVCardObj.cpp for Mozilla Firefox before the Preview Release, Mozilla before 1.7.
    43Plan
  • CVE-2004-0902Multiple heap-based buffer overflows in Mozilla Firefox before the Preview Release, Mozilla before 1.7.3, and Thunderbird before 0.8 allow…
    43Plan

Published before and after this one in the same product

  • ← EarlierCVE-2003-0791Oct 7, 2003 · The Script.prototype.freeze/thaw functionality in Mozilla 1.4 and earlier allows attackers to execute native methods by modifying the…
    40Plan
  • ← EarlierCVE-2003-1265Dec 31, 2003 · Netscape 7.0 and Mozilla 5.0 do not immediately delete messages in the trash folder when users select the 'Empty Trash' option, which could…
    8Monitor
  • Later →CVE-2003-0594Apr 15, 2004 · Mozilla allows remote attackers to bypass intended cookie access restrictions on a web application via "%2e%2e" (encoded dot dot) directory…
    30Monitor

Remediation

Which version to upgrade to

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

No fix version is recorded for this entry. Check the references for vendor advisories.

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.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

    If successful

    Confidentiality
    P · data can be read
    Integrity
    P · data or configuration can be modified
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    P
    Integrity impact
    P
    Availability impact
    P

    Weakness class (CWE)

    —

    CVSS vector

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

    nvd-primary

    Attack context

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

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    References

    Show all references (8 more)

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

    All records