Vulnerability Details : CVE-2021-31555
An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarc_version (aka oauth_registered_consumer.oarc_version) parameter's length.
Vulnerability category: Input validation
Products affected by CVE-2021-31555
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-31555
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 38 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-31555
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-31555
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-31555
-
https://phabricator.wikimedia.org/T277388
⚓ T277388 OAuth doesn't validate length of oarc_versionThird Party Advisory
-
https://gerrit.wikimedia.org/r/q/I222c053b4b14ac1ad0f5b3a51565b1b9cd4c139d
I222c053b4b14ac1ad0f5b3a51565b1b9cd4c139d · Gerrit Code ReviewIssue Tracking;Vendor Advisory
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