CVE-2026-58519 Stored XSS through Cargo's map format
Stored XSS in MediaWiki Cargo Extension allows attackers to inject malicious scripts, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-58519?
CVE-2026-58519 is a medium-severity cross-site scripting vulnerability in The Wikimedia Foundation Mediawiki - Cargo Extension, published on 1 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo Extension allows Stored XSS.
This issue affects Mediawiki - Cargo Extension: from * before 3.9.1.
Weakness: CWE-79
Which versions are affected by CVE-2026-58519?
It affects 1 product.
Products include Mediawiki Cargo.
How do I fix CVE-2026-58519?
No fix has been published for CVE-2026-58519 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-58519 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-58519 exists.
Other vulnerabilities in The Wikimedia Foundation Mediawiki - Cargo Extension
- CVE-2024-47849 Backticks can allow the usage of not-allowed SQL functions
- CVE-2026-14363 Cargo Extension: SQLi in Special:Drilldown
- CVE-2026-58521 SQLi in Cargo extension via year range filter
- CVE-2024-47846 Special:DeleteCargoTable and Special:SwitchCargoTable have no CSRF protection
- CVE-2024-47847 Various XSSes found in Cargo
Sources
Also known as GHSA-r23x-87q7-xq2f.