CVE-2023-51704

An issue was discovered in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1...

6.1 MediumFix available

An issue was discovered in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. In includes/logging/RightsLogFormatter.php, group-*-member messages can result in XSS on Special:log/rights.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.68%Up 0.6 points since Dec 22, 2023

What each source reports

NVD Score used 6.1

Record: CVE-2023-51704
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2023-51704
Updated: 2026-11-02

EUVDEUVD-2023-56401 No score

Record: EUVD-2023-56401
Updated: 2026-11-02

GitHub AdvisoriesGHSA-pmh9-hwq5-vvpj 6.1

An issue was discovered in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1...

Record: GHSA-pmh9-hwq5-vvpj
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSVDEBIAN-CVE-2023-51704 6.1

Record: DEBIAN-CVE-2023-51704
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2023-51704 6.1

Record: UBUNTU-CVE-2023-51704
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVBIT-mediawiki-2023-51704 No score

Record: BIT-mediawiki-2023-51704
Updated: 2026-11-02

OSV No score

Record: CVE-2023-51704
Updated: 2026-11-02

OSVMGASA-2024-0155 No score

Updated mediawiki packages fix security vulnerabilities

Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to become an administrator by sending a malicious link to the instance administrator. (CVE-2023-3550) An issue was discovered 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. There is XSS in youhavenewmessagesmanyusers and youhavenewmessages i18n messages. This is related to MediaWiki:Youhavenewmessagesfromusers. (CVE-2023-45360) An issue was discovered in DifferenceEngine.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. diff-multi-sameuser (aka "X intermediate revisions by the same user not shown") ignores username suppression. This is an information leak. (CVE-2023-45362) 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. (CVE-2023-45363) An issue was discovered in includes/page/Article.php in MediaWiki 1.36.x through 1.39.x before 1.39.5 and 1.40.x before 1.40.1. Deleted revision existence is leaked due to incorrect permissions being checked. This reveals that a given revision ID belonged to the given page title, and its timestamp, both of which are not supposed to be public information. (CVE-2023-45364) An issue was discovered in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. In includes/logging/RightsLogFormatter.php, group-*-member messages can result in XSS on Special:log/rights. (CVE-2023-51704)

Record: MGASA-2024-0155
Updated: 2026-11-02

Affected products

mediawiki

Affected packages

Affected packages
Package	Affected	Fixed
`mediawiki` Bitnami	before 1.35.14, 1.36.0 up to 1.39.6, 1.40.0 up to 1.40.2	1.35.141.39.61.40.2
`mediawiki` Debian:12	before 1:1.39.7-1~deb12u1, plus listed versions 1:1.39.2-11:1.39.4-11:1.39.4-1~deb12u11:1.39.4-21:1.39.5-11:1.39.5-1~deb12u11:1.39.6-1	1:1.39.7-1~deb12u1
`mediawiki` Debian:13	before 1:1.39.6-1	1:1.39.6-1
`mediawiki` Debian:14	before 1:1.39.6-1	1:1.39.6-1
`mediawiki` Debian:10 From an advisory covering 2 CVEs	before 1:1.31.16-1+deb10u8, plus listed versions 1:1.31.10-1~deb10u11:1.31.12-1~deb10u11:1.31.14-1~deb10u11:1.31.16-1+deb10u21:1.31.16-1+deb10u3 Show 16 moreShow less 1:1.31.16-1+deb10u41:1.31.16-1+deb10u51:1.31.16-1+deb10u61:1.31.16-1+deb10u71:1.31.16-1~deb10u11:1.31.2-11:1.31.4-11:1.31.4-1~deb10u11:1.31.5-11:1.31.5-21:1.31.5-31:1.31.6-11:1.31.6-1~deb10u11:1.31.7-11:1.31.7-1~deb10u11:1.31.8-1	1:1.31.16-1+deb10u8
`mediawiki` Debian:11	before 1:1.35.13-1+deb11u3, plus listed versions 1:1.35.11-1~deb11u11:1.35.13-1+deb11u21:1.35.13-1~deb11u11:1.35.2-11:1.35.3-1 Show 10 moreShow less 1:1.35.4-11:1.35.4-1+deb11u21:1.35.4-1~deb11u11:1.35.5-11:1.35.5-21:1.35.6-11:1.35.7-11:1.35.8-11:1.35.8-1.11:1.35.8-1~deb11u1	1:1.35.13-1+deb11u3
`mediawiki` Mageia:9 From an advisory covering 8 CVEs	before 1.35.14-1.mga9	1.35.14-1.mga9
`mediawiki` Ubuntu:18.04:LTS	All versions, plus listed versions 1:1.27.3-11:1.27.4-11:1.27.4-21:1.27.4-3	None known
`mediawiki` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 1:1.31.2-1ubuntu11:1.31.5-11:1.31.5-1ubuntu11:1.31.5-21:1.31.5-3 Show 4 moreShow less 1:1.31.5-3ubuntu11:1.31.6-11:1.31.7-11:1.31.7-1ubuntu0.1~esm1	None known
`mediawiki` Ubuntu:Pro:22.04:LTS	All versions, plus listed versions 1:1.35.3-11:1.35.4-11:1.35.5-11:1.35.5-1ubuntu11:1.35.5-1ubuntu21:1.35.5-1ubuntu31:1.35.6-11:1.35.6-1ubuntu0.1~esm1	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-51704 is a medium vulnerability (CVSS 6.1) in Mediawiki, published December 22, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.68%, the 52nd percentile. Fixed in mediawiki 1.35.14.

References

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