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HIGH

CVE-2023-45363

CVSS v3

7.5

HIGH

EPSS Score

22.7 %

exploit probability, as of 2026-10-04

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

An issue was discovered in ApiPageSet.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. It allows attackers to cause a denial of service (unbounded loop and RequestTimeoutException) when querying pages redirected to other variants with redirects and converttitles set.

Technical details

Published
2023-10-09

Frequently asked questions

What is CVE-2023-45363?

An issue was discovered in ApiPageSet.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. It allows attackers to cause a denial of service (unbounded loop and RequestTimeoutException) when querying pages redirected to other variants with redirects and converttitles set.

Is CVE-2023-45363 actively exploited?

Active exploitation of CVE-2023-45363 has not been confirmed. Its EPSS score was 22.7% on 2026-10-04, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-45363?

CVE-2023-45363 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2023-45363 affecting your environment?

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