HIGH
MediaWiki 1.27.x before 1.27.1 might allow remote attackers to bypass intended session access restrictions by leveraging a call to the UserGetRights function after Session::getAllowedUserRights
Published Apr 20, 2017
7.5
HIGHCVSS 3.0
EPSS 1.23%
Description
MediaWiki 1.27.x before 1.27.1 might allow remote attackers to bypass intended session access restrictions by leveraging a call to the UserGetRights function after Session::getAllowedUserRights.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.23% 0.01231
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01231
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 | 1.23% (0.01231) | 67.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.12% (0.01123) | 61.88th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.34% (0.00339) | 54.45th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.16% (0.00160) | 53.87th | v3 (v2023.03.01) |
| Jun 28, 2024 | 0.16% (0.00160) | 52.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00160) | 50.77th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
Weaknesses (1)
References (2)
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html mailing-listx_refsource_MLISTMailing ListPatchVendor Advisory
- https://phabricator.wikimedia.org/T139670 x_refsource_CONFIRMPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html | mailing-listx_refsource_MLISTMailing ListPatchVendor Advisory | |
| https://phabricator.wikimedia.org/T139670 | x_refsource_CONFIRMPatchThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Apr 20, 2017
Updated Aug 6, 2024
Reserved Jul 26, 2016
Link CVE-2016-6337
CISA Vulnrichment
Updated n/a