Vulnerability Details : CVE-2019-18611
An issue was discovered in the CheckUser extension through 1.34 for MediaWiki. Certain sensitive information within oversighted edit summaries made available via the MediaWiki API was potentially visible to users with various levels of access to this extension. Said users should not have been able to view these oversighted edit summaries via the MediaWiki API.
Vulnerability category: Information leak
Products affected by CVE-2019-18611
- cpe:2.3:a:mediawiki:checkuser:*:*:*:*:*:mediawiki:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-18611
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-18611
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2019-18611
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-18611
-
https://gerrit.wikimedia.org/r/q/Ie0aa0df2b3f03d8b910733f1b5e600a0dc978765
Ie0aa0df2b3f03d8b910733f1b5e600a0dc978765 | gerrit.wikimedia Code ReviewPatch;Vendor Advisory
-
https://phabricator.wikimedia.org/T234862
⚓ T234862 Verify that the MediaWiki API is not leaking Oversighted edit summaries within CheckUser results (CVE-2019-18611)Patch;Vendor Advisory
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