CVE-2015-5961 — The COPPA error page in the Accounts setup dialog in Mozilla Firefox OS before 2.2 embeds content from an external web server URL into the System process, which allows man-in-the-middle attackers to bypass intended access restrictions by spoofing that server

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LOW

The COPPA error page in the Accounts setup dialog in Mozilla Firefox OS before 2.2 embeds content from an external web server URL into the System process, which allows man-in-the-middle attackers to bypass intended access restrictions by spoofing that server

Published Aug 8, 2015

3.3

LOW

CVSS 2.0

EPSS 0.38%

Description

The COPPA error page in the Accounts setup dialog in Mozilla Firefox OS before 2.2 embeds content from an external web server URL into the System process, which allows man-in-the-middle attackers to bypass intended access restrictions by spoofing that server.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.38% 0.00377

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00377

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.38% (0.00377)	29.25th	v5 (v2026.06.15)
Jun 15, 2026	0.38% (0.00377)	29.24th	v5 (v2026.06.15)
Mar 17, 2025	0.09% (0.00087)	22.85th	v4 (v2025.03.14)
Dec 12, 2024	0.07% (0.00074)	33.95th	v3 (v2023.03.01)
Jun 21, 2024	0.07% (0.00074)	32.03th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00074)	29.99th	v3 (v2023.03.01)
Mar 6, 2023	0.95% (0.00954)	36.37th	v2 (v2022.01.01)
Sep 2, 2022	0.95% (0.00954)	34.50th	v2 (v2022.01.01)
Apr 1, 2022	0.95% (0.00954)	32.50th	v2 (v2022.01.01)
Feb 4, 2022	0.95% (0.00954)	16.28th	v2 (v2022.01.01)

Weaknesses (1)

CWE-264

References (3)

http://www.mozilla.org/security/announce/2015/mfsa2015-75.html
x_refsource_CONFIRM
http://www.securityfocus.com/bid/76255
vdb-entryx_refsource_BID
https://bugzilla.mozilla.org/show_bug.cgi?id=1123433
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
http://www.mozilla.org/security/announce/2015/mfsa2015-75.html		x_refsource_CONFIRM
http://www.securityfocus.com/bid/76255		vdb-entryx_refsource_BID
https://bugzilla.mozilla.org/show_bug.cgi?id=1123433		x_refsource_CONFIRMVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Aug 8, 2015

Updated Aug 6, 2024

Reserved Aug 7, 2015

Link CVE-2015-5961

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-5961

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-5961