What is CVE-2021-45038?

CVE-2021-45038 is a medium-severity vulnerability in Mediawiki, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-12-17.

How severe is CVE-2021-45038?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2021-45038 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in Mediawiki

CVE-2021-45038

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. By using an action=rollback query, attackers can view private wiki contents.

Vulnerability class: Information Disclosure

EPSS: 0.013 (68.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Mediawiki
N/a — versions n/a

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory)
cve@mitre.org (Vendor Advisory)
cve@mitre.org (vendor-advisory)

Frequently asked questions

What is CVE-2021-45038?: CVE-2021-45038 is a medium-severity vulnerability in Mediawiki, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-12-17.
How severe is CVE-2021-45038?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-45038 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.