CVE-2013-0798 — Mozilla Firefox before 20.0 on Android uses world-writable and world-readable permissions for the app_tmp installation directory in the local filesystem, which allows attackers to modify add-ons before installation via an application that leverages the time window during which app_tmp is used

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MEDIUM

Mozilla Firefox before 20.0 on Android uses world-writable and world-readable permissions for the app_tmp installation directory in the local filesystem, which allows attackers to modify add-ons before installation via an application that leverages the time window during which app_tmp is used

Published Apr 3, 2013

4.3

MEDIUM

CVSS 2.0

EPSS 0.99%

Description

Mozilla Firefox before 20.0 on Android uses world-writable and world-readable permissions for the app_tmp installation directory in the local filesystem, which allows attackers to modify add-ons before installation via an application that leverages the time window during which app_tmp is used.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.99% 0.00994

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

EPSS probability 0.00994

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	0.99% (0.00994)	61.27th	v5 (v2026.06.15)
Jun 15, 2026	0.99% (0.00994)	57.93th	v5 (v2026.06.15)
Mar 17, 2025	0.22% (0.00218)	42.37th	v4 (v2025.03.14)
Dec 12, 2024	0.14% (0.00138)	50.93th	v3 (v2023.03.01)
Jun 14, 2024	0.14% (0.00138)	49.59th	v3 (v2023.03.01)
Mar 7, 2023	0.14% (0.00138)	47.57th	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://lists.opensuse.org/opensuse-security-announce/2013-04/msg00013.html
vendor-advisoryx_refsource_SUSE
http://www.mozilla.org/security/announce/2013/mfsa2013-33.html
x_refsource_CONFIRMVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=844832
x_refsource_CONFIRM

Link	Providers	Tags
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00013.html		vendor-advisoryx_refsource_SUSE
http://www.mozilla.org/security/announce/2013/mfsa2013-33.html		x_refsource_CONFIRMVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=844832		x_refsource_CONFIRM

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mozilla

Published Apr 3, 2013

Updated Aug 6, 2024

Reserved Jan 2, 2013

Link CVE-2013-0798

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2013-0798

Red Hat

Severity n/a

Public date n/a

Links CVE-2013-0798