MEDIUM
MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not properly protect user block metadata, which allows remote administrators to read a user block reason via a reblock attempt
Published Oct 19, 2017
4.9
MEDIUMCVSS 3.0
EPSS 1.20%
Description
MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not properly protect user block metadata, which allows remote administrators to read a user block reason via a reblock attempt.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
4.9 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
4.0 MEDIUM NVD
AV:N/AC:L/Au:S/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.20% 0.01201
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01201
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 | 1.20% (0.01201) | 67.10th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.20% (0.01201) | 64.09th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.32% (0.00316) | 52.44th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.11% (0.00111) | 45.96th | v3 (v2023.03.01) |
| Jun 7, 2024 | 0.11% (0.00111) | 44.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00110) | 42.35th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
Weaknesses (1)
References (5)
- http://www.openwall.com/lists/oss-security/2012/08/31/10 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2012/08/31/6 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330 x_refsource_MISCIssue TrackingThird Party Advisory
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html mailing-listx_refsource_MLISTPatchVendor Advisory
- https://phabricator.wikimedia.org/T41823 x_refsource_CONFIRMIssue TrackingVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2012/08/31/10 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2012/08/31/6 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html | mailing-listx_refsource_MLISTPatchVendor Advisory | |
| https://phabricator.wikimedia.org/T41823 | x_refsource_CONFIRMIssue TrackingVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Oct 19, 2017
Updated Aug 6, 2024
Reserved Aug 21, 2012
Link CVE-2012-4382
CISA Vulnrichment
Updated n/a