CVE-2023-45363

Mediawiki vulnerability

CVSS

7.5

EPSS

22.7%

EPSS pct

97th

Exploited

No known

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.

Affected vendor

Mediawiki

Affected product

Mediawiki

CVSS vector

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

Weakness type (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

Published

2023-10-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 22.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2023-45363

Confirm whether Mediawiki Mediawiki is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2023-45363.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-45363

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-45363 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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