CVE-2023-22911

Name: CVE-2023-22911
Creator: NVD / NIST
Published: 2023-01-10T08:15:10.433+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.57%

Last modified Jun 17, 2026

CVE-2023-22911 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. E-Widgets does widget replacement in HTML attributes, which can lead to XSS, because widget authors often do not expect that their widget is executed in an HTML attribute context.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. E-Widgets does widget replacement in HTML attributes, which can lead to XSS, because widget authors often do not expect that their widget is executed in an HTML attribute context.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.57%

42.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	< 1.35.9
Mediawiki	Mediawiki	>= 1.36.0, < 1.38.5
Mediawiki	Mediawiki	1.39.0
Fedoraproject	Fedora	37

References

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AP65YEN762IBNQPOYGUVLTQIDLM5XD2A/
https://phabricator.wikimedia.org/T149488Exploit, Issue Tracking, Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AP65YEN762IBNQPOYGUVLTQIDLM5XD2A/
https://phabricator.wikimedia.org/T149488Exploit, Issue Tracking, Patch, Vendor Advisory

Timeline

Published: Jan 10, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-22911?

How severe is CVE-2023-22911?

CVE-2023-22911 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.

How do I fix CVE-2023-22911?

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-2023-22911?

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

Scan your code now

Source: NVD / NIST