CVE-2023-3550
High
Description
Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to become an administrator by sending a malicious link to the instance administrator.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Mediawiki
PublishedSep 25, 2023
First seenSep 25, 2023
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mediawiki mediawiki | 1.40.0 | — |
| debian debian_linux | 10.0, 11.0 | — |
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