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CVE-2015-4519

14
FAUCET Score

CVE-2015-4519 is a user-assisted vulnerability affecting Mozilla Firefox versions before 41.0 and Firefox ESR 38.x before 38.3. It allows remote attackers to bypass access restrictions and discover a redirect's target URL through crafted JavaScript executed after a drag-and-drop action of an image into a TEXTBOX element. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity with potential for partial confidentiality impact, but no integrity or availability impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
38.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:*
38.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:*
38.0.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:*
38.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:*
38.1.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
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
2.73%
Probability of exploitation in next 30 days
EPSS Percentile
84.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0273 is in the 76th percentile among its peer group of 19,958 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

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:38.3.0-2.el6_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:38.3.0-2.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:38.3.0-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:38.3.0-1.el7_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:38.3.0-1.el6_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:38.3.0-2.ael7b_1
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2015-4519Moderate

Mozilla: Dragging and dropping images exposes final URL after redirects (MFSA 2015-110)

Sep 22, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-10/msg00000.html
lists.opensuse.org / opensuse-security-announce/2015-10/msg00003.html
lists.opensuse.org / opensuse-security-announce/2015-10/msg00004.html
lists.opensuse.org / opensuse-security-announce/2015-10/msg00005.html
lists.opensuse.org / opensuse-security-announce/2015-10/msg00007.html
lists.opensuse.org / opensuse-security-announce/2015-11/msg00025.html
rhn.redhat.com / errata/RHSA-2015-1834.html
rhn.redhat.com / errata/RHSA-2015-1852.html
bugzilla.mozilla.org / show_bug.cgi
debian.org / security/2015/dsa-3365
mozilla.org / security/announce/2015/mfsa2015-110.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
oracle.com / technetwork/topics/security/linuxbulletinoct2015-2719645.html
securityfocus.com / bid/76816
securitytracker.com / id/1033640
ubuntu.com / usn/USN-2743-1
ubuntu.com / usn/USN-2743-2
ubuntu.com / usn/USN-2743-3
ubuntu.com / usn/USN-2743-4
ubuntu.com / usn/USN-2754-1