CVE-2025-53369

Short Description is a MediaWiki extension that provides local short description support. In version 4.0.0, short descriptions are not properly sanitized before being inserted as HTML using mw.util.addSubtitle, allowing any user to insert arbitrary HTML into the DOM by editing a page. This issue has been patched in version 4.0.1.

CVSS v3.1

8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

CVSS v3.1

8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

EPSS

0.30% chance of exploitation in the next 30 days, 22th percentile

Published

2025-07-03

Proof-of-concept exploits (1)

• advisories/GHSA-p85q-mww9-gwqf

References

• CVE Record
• NVD entry

Related

• CVE-2025-53368
• CVE-2025-53370
• CVE-2025-53367
• CVE-2025-53372
• CVE-2025-53364
• CVE-2025-53377