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CVE-2015-0819

14
FAUCET Score

CVE-2015-0819 describes a vulnerability in Mozilla Firefox versions prior to 36.0, specifically within the UITour::onPageEvent function, affecting various Firefox distributions across Canonical, Mozilla, and openSUSE. This flaw allows remote attackers to conduct spoofing and clickjacking attacks because the function fails to verify if an API call originates from a foreground tab. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity (AC:M) and requiring no authentication (Au:N), with a potential impact of partial integrity compromise (I:P). There is no evidence of active exploitation, no known exploit code in Metasploit or ExploitDB, and it has received no community discussion or media coverage, suggesting a low exploitation status.

Impacted Technologies

VendorProductVersion(s)CPE
<= 35.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.1:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.2:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.3:*:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.08%
Probability of exploitation in next 30 days
EPSS Percentile
79.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0208 is in the 66th percentile among its peer group of 19,956 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2015-0819Moderate

Mozilla: UI Tour whitelisted sites in background tab can spoof foreground tabs (MFA 2015-26)

Feb 24, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-03/msg00000.html
Third Party Advisory
lists.opensuse.org / opensuse-updates/2015-03/msg00067.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue Tracking
security.gentoo.org / glsa/201504-01
mozilla.org / security/announce/2015/mfsa2015-26.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
securityfocus.com / bid/72759
Third Party AdvisoryVDB Entry
securitytracker.com / id/1031791
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2505-1
Third Party Advisory