CVE-2023-45364Network attack vector

Deleted revision metadata disclosure via incomplete permission check

Published Oct 9, 2023 · Updated Sep 19, 2024

Information disclosure in MediaWiki 1.36.0 through 1.39.4 and 1.40.0 allows remote attackers to read deleted revision metadata. Article.php asks RevisionArchiveRecord::userCan() about revision-deletion visibility without checking whether the requester may view revisions of a deleted page. An unauthenticated oldid request reveals that a revision ID belonged to a page title and discloses its timestamp, but not the deleted content.

CVSS severity5.3
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in MediaWiki 1.36.0 through 1.39.4 and 1.40.0 allows remote attackers to read deleted revision metadata. Article.php asks RevisionArchiveRecord::userCan() about revision-deletion visibility without checking whether the requester may view revisions of a deleted page. An unauthenticated oldid request reveals that a revision ID belonged to a page title and discloses its timestamp, but not the deleted content.

The record

CVE
CVE-2023-45364
Published
Oct 9, 2023
Updated
Sep 19, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-732
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3UbuntuCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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