The CentralNotice extension for MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 sets the Cache-Control header to cache session cookies when a user is autocreated, which allows remote attackers to authenticate as the created user
Published Feb 6, 2020
7.5
HIGHCVSS 3.1
EPSS 2.14%
Description
The CentralNotice extension for MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 sets the Cache-Control header to cache session cookies when a user is autocreated, which allows remote attackers to authenticate as the created user.
Affected products
-
- Version 1.20.x before 1.20.8StatusaffectedConstraints-
- Version 1.21.x before 1.21.3StatusaffectedConstraints-
- Version before 1.19.9StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wikimedia Foundation | MediaWiki | n/a |
|
Configuration 1
Configuration 2
- 18
- 19
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:P/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 | 2.14% (0.02142) | 81.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.09% (0.02089) | 79.10th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.85% (0.00849) | 73.27th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00245) | 65.13th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.24% (0.00245) | 63.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00245) | 60.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (4)
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/122998.html x_refsource_MISCMailing ListThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123011.html x_refsource_MISCMailing ListThird Party Advisory
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.html x_refsource_CONFIRMMailing ListThird Party Advisory
- https://bugzilla.wikimedia.org/show_bug.cgi?id=53032 x_refsource_MISCIssue TrackingPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2013-December/122998.html | x_refsource_MISCMailing ListThird Party Advisory | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123011.html | x_refsource_MISCMailing ListThird Party Advisory | |
| http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.html | x_refsource_CONFIRMMailing ListThird Party Advisory | |
| https://bugzilla.wikimedia.org/show_bug.cgi?id=53032 | x_refsource_MISCIssue TrackingPatchThird Party Advisory |
Change history (0)
No recorded changes yet.