Vulnerability · Published Dec 21, 2020 · Assigned by mitre
CVE-2020-35623
High 7.5
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.1%top 34.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in the CasAuth extension for MediaWiki through 1.35.1. Due to improper username validation, it allowed user impersonation with trivial manipulations of certain characters within a given username. An ordinary user may be able to login as a "bureaucrat user" who has a similar username, as demonstrated by usernames that differ only in (1) bidirectional override symbols or (2) blank space.
Affected products (as reported)
References
- https://phabricator.wikimedia.org/T263498 x_refsource_MISC
- https://github.com/CWRUChielLab/CASAuth/pull/11 x_refsource_MISC