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CVE-2016-5260

21
FAUCET Score

CVE-2016-5260 describes a vulnerability in Mozilla Firefox prior to version 48.0 where a cleartext password could be exposed in a session restoration file. This occurs when an INPUT field changes from type "password" to "text" within a single Session Manager session. Rated as Medium severity (CVSS 6.5), the vulnerability requires user interaction (UI:R) and could lead to high confidentiality impact (C:H) if an attacker gains access to the session file. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 47.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.38%
Probability of exploitation in next 30 days
EPSS Percentile
69.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0138 is in the 82nd percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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-2016-5260Moderate

Mozilla: Form input type change from password to text can store plain text password in session restore file (MFSA 2016-74)

Aug 2, 2016

References

lists.opensuse.org / opensuse-security-announce/2016-08/msg00004.html
lists.opensuse.org / opensuse-security-announce/2016-08/msg00029.html
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
security.gentoo.org / glsa/201701-15
mozilla.org / security/announce/2016/mfsa2016-74.html
Vendor Advisory
securityfocus.com / bid/92260
securitytracker.com / id/1036508
ubuntu.com / usn/USN-3044-1