CVE-2015-3273 — mod/forum/post.php in Moodle 2.9.x before 2.9.1 does not consider the mod/forum:canposttomygroups capability before authorizing "Post a copy to all groups" actions, which allows remote authenticated users to bypass intended access restrictions by leveraging per-group authorization

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MEDIUM

mod/forum/post.php in Moodle 2.9.x before 2.9.1 does not consider the mod/forum:canposttomygroups capability before authorizing "Post a copy to all groups" actions, which allows remote authenticated users to bypass intended access restrictions by leveraging per-group authorization

Published Feb 22, 2016

4.3

MEDIUM

CVSS 3.0

EPSS 1.50%

Description

mod/forum/post.php in Moodle 2.9.x before 2.9.1 does not consider the mod/forum:canposttomygroups capability before authorizing "Post a copy to all groups" actions, which allows remote authenticated users to bypass intended access restrictions by leveraging per-group authorization.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.50% 0.01500

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.01500

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 2, 2026	1.50% (0.01500)	73.37th	v5 (v2026.06.15)
Jun 15, 2026	1.50% (0.01500)	70.84th	v5 (v2026.06.15)
Mar 17, 2025	0.18% (0.00184)	37.95th	v4 (v2025.03.14)
Dec 12, 2024	0.15% (0.00153)	52.99th	v3 (v2023.03.01)
Jun 14, 2024	0.15% (0.00153)	51.78th	v3 (v2023.03.01)
Mar 7, 2023	0.15% (0.00153)	49.76th	v3 (v2023.03.01)
Mar 6, 2023	1.13% (0.01132)	56.11th	v2 (v2022.01.01)
Sep 22, 2022	1.13% (0.01132)	54.59th	v2 (v2022.01.01)
Apr 1, 2022	1.13% (0.01132)	52.58th	v2 (v2022.01.01)
Feb 4, 2022	1.13% (0.01132)	30.65th	v2 (v2022.01.01)

Weaknesses (1)

CWE-264

References (4)

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50220
x_refsource_CONFIRM
http://openwall.com/lists/oss-security/2015/07/13/2
mailing-listx_refsource_MLIST
http://www.securitytracker.com/id/1032877
vdb-entryx_refsource_SECTRACK
https://moodle.org/mod/forum/discuss.php?d=316663
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50220		x_refsource_CONFIRM
http://openwall.com/lists/oss-security/2015/07/13/2		mailing-listx_refsource_MLIST
http://www.securitytracker.com/id/1032877		vdb-entryx_refsource_SECTRACK
https://moodle.org/mod/forum/discuss.php?d=316663		x_refsource_CONFIRMVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner redhat

Published Feb 22, 2016

Updated Aug 6, 2024

Reserved Apr 10, 2015

Link CVE-2015-3273

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-3273

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-3273