CVE-2026-58517
Blocked users can create and edit WikiLambda objects
Description
Improper neutralization of input terminators vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension allows Authentication Bypass. This issue affects Mediawiki - WikiLambda Extension: from * before 1.43.9,1.44.6,1.45.4.
INFO
Published Date :
July 1, 2026, 6:23 p.m.
Last Modified :
July 1, 2026, 6:23 p.m.
Remotely Exploit :
Yes !
Source :
wikimedia-foundation
Affected Products
The following products are affected by CVE-2026-58517
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | c4f26cc8-17ff-4c99-b5e2-38fc1793eacc | ||||
| CVSS 4.0 | MEDIUM | c4f26cc8-17ff-4c99-b5e2-38fc1793eacc |
Solution
- Update WikiLambda Extension to version 1.43.9.
- Update WikiLambda Extension to version 1.44.6.
- Update WikiLambda Extension to version 1.45.4.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-58517 vulnerability anywhere in the article.