CVE-2017-0371

Name: CVE-2017-0371
Creator: NVD / NIST
Published: 2022-02-18T23:15:07.843+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2017-0371 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. MediaWiki before 1.23.16, 1.24.x through 1.27.x before 1.27.2, and 1.28.x before 1.28.1 allows remote attackers to discover the IP addresses of Wiki visitors via a style="background-image: attr(title url);" attack within a DIV element that has an attacker-controlled URL in the title attribute.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

MediaWiki before 1.23.16, 1.24.x through 1.27.x before 1.27.2, and 1.28.x before 1.28.1 allows remote attackers to discover the IP addresses of Wiki visitors via a style="background-image: attr(title url);" attack within a DIV element that has an attacker-controlled URL in the title attribute.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.54%

71.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	< 1.23.16
Mediawiki	Mediawiki	>= 1.24.0, < 1.27.2
Mediawiki	Mediawiki	>= 1.28.0, < 1.28.1

References

https://phabricator.wikimedia.org/T140591Issue Tracking, Patch, Vendor Advisory
https://phabricator.wikimedia.org/T68404Exploit, Issue Tracking, Patch, Vendor Advisory
https://phabricator.wikimedia.org/T140591Issue Tracking, Patch, Vendor Advisory
https://phabricator.wikimedia.org/T68404Exploit, Issue Tracking, Patch, Vendor Advisory

Timeline

Published: Feb 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-0371?

How severe is CVE-2017-0371?

CVE-2017-0371 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2017-0371?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-0371?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST