Vulnerability Details : CVE-2023-3550
Potential exploit
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.
Products affected by CVE-2023-3550
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.40.0:-:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-3550
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 37 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-3550
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.3
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N |
2.1
|
5.2
|
Fluid Attacks | |
9.0
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
2.3
|
6.0
|
NIST |
CWE ids for CVE-2023-3550
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by:
- help@fluidattacks.com (Secondary)
- nvd@nist.gov (Secondary)
References for CVE-2023-3550
-
https://www.debian.org/security/2023/dsa-5520
Debian -- Security Information -- DSA-5520-1 mediawikiThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
[SECURITY] Fedora 40 Update: php-oojs-oojs-ui-0.48.1-1.fc40 - package-announce - Fedora Mailing-Lists
-
https://www.mediawiki.org/wiki/MediaWiki/
MediaWikiProduct
-
https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
[SECURITY] [DLA 3671-1] mediawiki security updateMailing List;Third Party Advisory
-
https://fluidattacks.com/advisories/blondie/
Stored XSS leads to privilege escalation in MediaWiki v1.40.0 | Advisories | Fluid AttacksExploit;Third Party Advisory
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