CVE-2020-10959 json
MediaWiki Open Redirect vulnerability
published 6y ago modified 4mo ago also BIT-mediawiki-2020-10959 , EUVD-2022-4609 , GHSA-mqhw-wq8p-vf5r
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
resources/src/mediawiki.page.ready/ready.js in MediaWiki before 1.35 allows remote attackers to force a logout and external redirection via HTML content in a MediaWiki page.
Patch / fix
- packagist mediawiki/core 1.34.0-rc.0
- bitnami mediawiki 1.35.0
- mediawiki mediawiki 1.35
Is CVE-2020-10959 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2020-10959 updated cvss 5.4
mediawiki: user content can redirect the logout button to different URL
-
Red Hat OpenShift Container Platform 3.11 mediawiki Red Hat OpenShift Container Platform 4 mediawikiaffected: no fix planned “Will not fix”
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T232932 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
| OSV | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | mediawiki/core | <1.34.0-rc.0 |
1.34.0-rc.0 |
| bitnami | mediawiki | <1.35.0 |
1.35.0 |
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
References
-
phabricator.wikimedia.org
/T232932
web, exploit, patch, third-party-advisory
-
gerrit.wikimedia.org
/r/c/mediawiki/core/+/536725
web, patch, third-party-advisory
-
phabricator.wikimedia.org
/T240393
web, patch, third-party-advisory
-
github.com
/wikimedia/mediawiki/commit/d4a552e65bdfd7309a9b8537e9dbe69c5e2991eb
web
-
nvd.nist.gov
/vuln/detail/CVE-2020-10959
advisory, web
-
github.com
/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-10959.yaml
web
-
github.com
/wikimedia/mediawiki
package
Sources
- CVE List CVE-2020-10959
- GitHub Advisory GHSA-mqhw-wq8p-vf5r
- NVD CVE-2020-10959
- OSV BIT-mediawiki-2020-10959
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.