MediaWiki before 1.17.1 does not check for read permission before handling action=ajax requests, which allows remote attackers to obtain sensitive information by (1) leveraging the SpecialUpload::ajaxGetExistsWarning function, or by (2) leveraging an extension, as demonstrated by the CategoryTree, ExtTab, and InlineEditor extensions
Published Jan 8, 2012
5.0
MEDIUMCVSS 2.0
EPSS 2.23%
Description
MediaWiki before 1.17.1 does not check for read permission before handling action=ajax requests, which allows remote attackers to obtain sensitive information by (1) leveraging the SpecialUpload::ajaxGetExistsWarning function, or by (2) leveraging an extension, as demonstrated by the CategoryTree, ExtTab, and InlineEditor extensions.
Affected products
No data.
Configuration 2
- 5.0
- 6.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 | 2.23% (0.02229) | 82.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.62% (0.02624) | 83.44th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.31% (0.00311) | 52.13th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.52% (0.00519) | 77.55th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.52% (0.00519) | 76.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.52% (0.00519) | 73.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (6)
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.html mailing-listx_refsource_MLISTPatchVendor Advisory
- http://openwall.com/lists/oss-security/2011/11/29/12 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/11/29/6 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.debian.org/security/2011/dsa-2366 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=758171 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://bugzilla.wikimedia.org/show_bug.cgi?id=32616 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.html | mailing-listx_refsource_MLISTPatchVendor Advisory | |
| http://openwall.com/lists/oss-security/2011/11/29/12 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://openwall.com/lists/oss-security/2011/11/29/6 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.debian.org/security/2011/dsa-2366 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=758171 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://bugzilla.wikimedia.org/show_bug.cgi?id=32616 | x_refsource_CONFIRMIssue TrackingPatchVendor Advisory |
Change history (0)
No recorded changes yet.