Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSummary
CVE-2023-45363 is a high-severity Infinite Loop (CWE-835) vulnerability in Mediawiki Mediawiki. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked in the top 2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
The vulnerability is an unbounded loop condition, tracked as CWE-835, in the ApiPageSet.php component of MediaWiki. It affects versions prior to 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. When the API receives a query for pages that redirect to other variants while both the redirects and converttitles parameters are set, the loop executes without termination and triggers a RequestTimeoutException, resulting in denial of service.
Unauthenticated remote attackers can exploit the flaw over the network by submitting crafted API requests that satisfy the redirect and title-conversion conditions. Successful exploitation produces only availability impact, with no effect on confidentiality or integrity, consistent with the CVSS 7.5 rating.
Debian security advisories DSA-5520 and the corresponding LTS announcements, along with Wikimedia Phabricator task T333050, direct administrators to apply the fixed releases 1.35.12, 1.39.5, or 1.40.1. The EPSS score remains flat at 0.1103 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-2825
Vulnerability Data
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…
more
redirects and converttitles set.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing can uncover infinite-loop conditions before release.
Secure development life cycle mandates practices that can detect and prevent infinite-loop defects.
Application security requirements can specify loop-termination rules, indirectly reducing the weakness.
Secure coding standards directly address loop termination and prevent infinite loops.
Secure architecture principles encourage designs that avoid unreachable exit conditions.
Change management can require review of loop logic when code is modified.