GHSA-c4rj-wrmq-52rj BIT-mediawiki-2020-25813 CVE-2020-25813
MediaWiki Special:UserRights exposes the existence of hidden users
Medium
Packagist
- Severity
- 5.3 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 1.29%
- Chance of exploitation in the next 30 days. Higher than 70.25% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- —
- Not classified
- Fix
1.31.9- Upgrade mediawiki/core to this version or later
Description
In MediaWiki before 1.31.9 and 1.32.x through 1.34.x before 1.34.3, Special:UserRights exposes the existence of hidden users.
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| mediawiki/core | >= 1.31.0, < 1.31.9 |
1.31.9 |
| mediawiki/core | >= 1.32.0, < 1.34.3 |
1.34.3 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
mediawiki/core Packagist → 1.31.9
- composer
composer require mediawiki/core:^1.31.9
Severity breakdown
CVSS 3.1 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
References
Advisories
Packages
Other links
- github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020…
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTT…
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ…
- lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
- lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
- meta.wikimedia.org/wiki/Special:UserRights
- phabricator.wikimedia.org/T232568
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-w5fx-cx7f-6vr9 MediaWiki Denial of Service vulnerability | High | Also affects mediawiki/core |
| GHSA-5vj8-g3qg-4qh6 X-Forwarded-For header allows brute-forcing autoblocked IP addresses | Critical | Also affects mediawiki/core |
| GHSA-c8wv-qwwc-6j73 MediaWiki allows a denial of service | Medium | Also affects mediawiki/core |
| GHSA-rqvj-fc2x-99q6 OATHAuth extension in MediaWiki is not implementing rate limit | High | Also affects mediawiki/core |
| GHSA-h8qx-mj6v-2934 MediaWiki Cross-site Scripting (XSS) vulnerability | Medium | Also affects mediawiki/core |
| GHSA-4vr7-m8p8-434h MediaWiki Cross-site Scripting (XSS) vulnerability | Medium | Also affects mediawiki/core |
| GHSA-2f58-vf6g-6p8x MediaWiki Cross-site Scripting (XSS) vulnerability | Medium | Also affects mediawiki/core |
| GHSA-rj9p-8jxj-2ch4 MediaWiki Cross-site Scripting (XSS) vulnerability | Medium | Also affects mediawiki/core |
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