EasyTimeline should not serve image maps as application/xml

published 2026-09-29 40 d ago modified 2026-10-01 38 d ago also EUVD-2026-89480

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits: 0; none known

XML injection (aka blind XPath injection) vulnerability in The Wikimedia Foundation Mediawiki - EasyTimeline extension allows XML Injection.

This issue affects Mediawiki - EasyTimeline extension: before 1.46.1, 1.45.5, 1.43.10.

Patch / fix

fixed in 1

The Wikimedia Foundation Mediawiki - EasyTimeline extension 1.46.1, 1.45.5, 1.43.10

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-103044 updated 2026-09-30 cvss 6.1

mediawiki: EasyTimeline should not serve image maps as application/xml

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 38 d ago (2026-10-01)

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

The Wikimedia Foundation Mediawiki - EasyTimeline extension

Classification

Weakness

CWE-91 XML Injection
CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

phabricator.wikimedia.org /T428006
issue-tracking
gerrit.wikimedia.org /r/c/mediawiki/extensions/timeline/+/1346078
mitigation

Sources

CVE List CVE-2026-103044
NVD CVE-2026-103044

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary