CVE-2005-1157

Exp

Firefox before 1.0.3, Mozilla Suite before 1.7.7, and Netscape 7.2 allows remote attackers to replace existing search plugins with malicious ones using sidebar.addSearchEngine and the same filename as the target engine, which may not be displayed in the GUI, which could then be used to execute malicious script, aka "Firesearching 2."

Published: 2005-05-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-1157 is rated High Exploit Risk (68.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.46%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2005-1157

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2005-1157

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 8.73% 2.46% -6.27%
2 2025-11-23 7.35% 8.73% +1.38%
3 2025-03-30 — 7.35% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-1157

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2005-1157

OS Trackers for CVE-2005-1157

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2005-1157
ubuntu medium CVE-2005-1157 medium priority: Ubuntu including 1 source packages (mozilla), 5 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): DNE 2, not-affected 2, needs-triage 1. https://ubuntu.com/security/CVE-2005-1157

Affected software / configurations for CVE-2005-1157

Vendor Product Version Raw CPE
mozilla firefox 0.8 cpe:2.3:a:mozilla:firefox:0.8:*:*:*:*:*:*:*
mozilla firefox 0.9 cpe:2.3:a:mozilla:firefox:0.9:*:*:*:*:*:*:*
mozilla firefox 0.9 cpe:2.3:a:mozilla:firefox:0.9:rc:*:*:*:*:*:*
mozilla firefox 0.9.1 cpe:2.3:a:mozilla:firefox:0.9.1:*:*:*:*:*:*:*
mozilla firefox 0.9.2 cpe:2.3:a:mozilla:firefox:0.9.2:*:*:*:*:*:*:*
mozilla firefox 0.9.3 cpe:2.3:a:mozilla:firefox:0.9.3:*:*:*:*:*:*:*
mozilla firefox 0.10 cpe:2.3:a:mozilla:firefox:0.10:*:*:*:*:*:*:*
mozilla firefox 0.10.1 cpe:2.3:a:mozilla:firefox:0.10.1:*:*:*:*:*:*:*
mozilla firefox 1.0 cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:*
mozilla firefox 1.0.1 cpe:2.3:a:mozilla:firefox:1.0.1:*:*:*:*:*:*:*
mozilla firefox 1.0.2 cpe:2.3:a:mozilla:firefox:1.0.2:*:*:*:*:*:*:*
mozilla mozilla 1.3 cpe:2.3:a:mozilla:mozilla:1.3:*:*:*:*:*:*:*
mozilla mozilla 1.4 cpe:2.3:a:mozilla:mozilla:1.4:*:*:*:*:*:*:*
mozilla mozilla 1.4 cpe:2.3:a:mozilla:mozilla:1.4:alpha:*:*:*:*:*:*
mozilla mozilla 1.4.1 cpe:2.3:a:mozilla:mozilla:1.4.1:*:*:*:*:*:*:*
mozilla mozilla 1.5 cpe:2.3:a:mozilla:mozilla:1.5:*:*:*:*:*:*:*
mozilla mozilla 1.5 cpe:2.3:a:mozilla:mozilla:1.5:alpha:*:*:*:*:*:*
mozilla mozilla 1.5 cpe:2.3:a:mozilla:mozilla:1.5:rc1:*:*:*:*:*:*
mozilla mozilla 1.5 cpe:2.3:a:mozilla:mozilla:1.5:rc2:*:*:*:*:*:*
mozilla mozilla 1.5.1 cpe:2.3:a:mozilla:mozilla:1.5.1:*:*:*:*:*:*:*
mozilla mozilla 1.6 cpe:2.3:a:mozilla:mozilla:1.6:*:*:*:*:*:*:*
mozilla mozilla 1.6 cpe:2.3:a:mozilla:mozilla:1.6:alpha:*:*:*:*:*:*
mozilla mozilla 1.6 cpe:2.3:a:mozilla:mozilla:1.6:beta:*:*:*:*:*:*
mozilla mozilla 1.7 cpe:2.3:a:mozilla:mozilla:1.7:*:*:*:*:*:*:*
mozilla mozilla 1.7 cpe:2.3:a:mozilla:mozilla:1.7:alpha:*:*:*:*:*:*
mozilla mozilla 1.7 cpe:2.3:a:mozilla:mozilla:1.7:beta:*:*:*:*:*:*
mozilla mozilla 1.7 cpe:2.3:a:mozilla:mozilla:1.7:rc1:*:*:*:*:*:*
mozilla mozilla 1.7 cpe:2.3:a:mozilla:mozilla:1.7:rc2:*:*:*:*:*:*
mozilla mozilla 1.7 cpe:2.3:a:mozilla:mozilla:1.7:rc3:*:*:*:*:*:*
mozilla mozilla 1.7.1 cpe:2.3:a:mozilla:mozilla:1.7.1:*:*:*:*:*:*:*
mozilla mozilla 1.7.2 cpe:2.3:a:mozilla:mozilla:1.7.2:*:*:*:*:*:*:*
mozilla mozilla 1.7.3 cpe:2.3:a:mozilla:mozilla:1.7.3:*:*:*:*:*:*:*
mozilla mozilla 1.7.5 cpe:2.3:a:mozilla:mozilla:1.7.5:*:*:*:*:*:*:*
mozilla mozilla 1.7.6 cpe:2.3:a:mozilla:mozilla:1.7.6:*:*:*:*:*:*:*
netscape navigator 7.2 cpe:2.3:a:netscape:navigator:7.2:*:*:*:*:*:*:*

References for CVE-2005-1157

URL Tags
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.49/SCOSA-2005.49.txt
http://secunia.com/advisories/14938 Patch Vendor Advisory
http://secunia.com/advisories/14992 Patch Vendor Advisory
http://secunia.com/advisories/14996 Patch Vendor Advisory
http://www.mikx.de/firesearching/ Exploit
http://www.mozilla.org/security/announce/mfsa2005-38.html Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2005-383.html Patch Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2005-384.html
http://www.redhat.com/support/errata/RHSA-2005-386.html Patch Vendor Advisory
http://www.securityfocus.com/bid/13211 Exploit Patch
http://www.securityfocus.com/bid/15495
https://bugzilla.mozilla.org/show_bug.cgi?id=290037 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/20125
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9961
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