CVE-2023-3550
Last modified
CVE-2023-3550 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. 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.. EPSS estimates a 1.15% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mediawiki | Mediawiki | 1.40.0 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
References
- https://fluidattacks.com/advisories/blondie/Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/11/msg00027.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2023/dsa-5520Third Party Advisory
- https://fluidattacks.com/advisories/blondie/Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/11/msg00027.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2023/dsa-5520Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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