CVE-2026-58024
API identification of users on private wikis
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.
This vulnerability is associated with program files includes/Api/ApiUserrights.Php.
This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
API identification of users on private wikis
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.
This vulnerability is associated with program files includes/Api/ApiUserrights.Php.
This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
- Record
CVE-2026-58024- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2026-41034
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.
This vulnerability is associated with program files includes/Api/ApiUserrights.Php.
This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
- Record
EUVD-2026-41034- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5mf7-4fq5-g3gp
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation...
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.
This vulnerability is associated with program files includes/Api/ApiUserrights.Php.
This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
- Record
GHSA-5mf7-4fq5-g3gp- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
NVD
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.
This vulnerability is associated with program files includes/Api/ApiUserrights.Php.
This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
- Record
CVE-2026-58024- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.
This vulnerability is associated with program files includes/Api/ApiUserrights.Php.
This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
- Record
CVE-2026-58024- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-58024
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Api/ApiUserrights.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
- Record
DEBIAN-CVE-2026-58024- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-58024
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Api/ApiUserrights.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
- Record
UBUNTU-CVE-2026-58024- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mediawikiDebian:12 |
All versions, plus listed versions 1:1.39.10-11:1.39.10-1~deb12u11:1.39.12-1~deb12u11:1.39.13-1~deb12u11:1.39.17-1+deb12u2 Show 29 moreShow less1:1.39.17-1~deb12u11:1.39.2-11:1.39.4-11:1.39.4-1~deb12u11:1.39.4-21:1.39.5-11:1.39.5-1~deb12u11:1.39.6-11:1.39.7-11:1.39.7-1~deb12u11:1.39.8-11:1.43.0+dfsg-11:1.43.0+dfsg-21:1.43.1+dfsg-11:1.43.1+dfsg-21:1.43.10+dfsg-11:1.43.11+dfsg-11:1.43.11+dfsg-21:1.43.11+dfsg-31:1.43.3+dfsg-11:1.43.5+dfsg-11:1.43.6+dfsg-11:1.43.6+dfsg-1~deb13u11:1.43.6+dfsg-21:1.43.8+dfsg-11:1.43.8+dfsg-1~deb13u11:1.43.8+dfsg-21:1.43.9+dfsg-11:1.43.9+dfsg-1~deb13u1 |
None known |
mediawikiDebian:13 |
before 1:1.43.9+dfsg-1~deb13u1, plus listed versions 1:1.43.3+dfsg-11:1.43.5+dfsg-11:1.43.6+dfsg-11:1.43.6+dfsg-1~deb13u11:1.43.6+dfsg-21:1.43.8+dfsg-11:1.43.8+dfsg-1~deb13u11:1.43.8+dfsg-2 |
1:1.43.9+dfsg-1~deb13u1 |
mediawikiDebian:14 |
before 1:1.43.9+dfsg-1, plus listed versions 1:1.43.3+dfsg-11:1.43.5+dfsg-11:1.43.6+dfsg-11:1.43.6+dfsg-1~deb13u11:1.43.6+dfsg-2 Show 4 moreShow less1:1.43.8+dfsg-11:1.43.8+dfsg-1~deb13u11:1.43.8+dfsg-21:1.43.9+dfsg-1~deb13u1 |
1:1.43.9+dfsg-1 |
mediawikiUbuntu: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 |
mediawikiUbuntu: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 less1:1.31.5-3ubuntu11:1.31.6-11:1.31.7-11:1.31.7-1ubuntu0.1~esm1 |
None known |
mediawikiUbuntu: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 |
mediawikiUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 1:1.39.4-21:1.39.5-11:1.39.6-11:1.39.7-11:1.39.7-1ubuntu0.1~esm1 |
None known |
mediawikiUbuntu:25.10 |
All versions, plus listed versions 1:1.43.1+dfsg-11:1.43.1+dfsg-21:1.43.3+dfsg-1 |
None known |
mediawikiUbuntu:26.10 |
All versions, plus listed versions 1:1.43.8+dfsg-21:1.43.9+dfsg-11:1.43.9+dfsg-1ubuntu1 |
None known |
mediawikiUbuntu:26.04:LTS |
All versions, plus listed versions 1:1.43.3+dfsg-11:1.43.5+dfsg-11:1.43.6+dfsg-21:1.43.8+dfsg-11:1.43.8+dfsg-2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-58024 is a medium vulnerability (CVSS 5.1) in Mediawiki, published July 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 30th percentile. Fixed in mediawiki 1:1.43.9+dfsg-1~deb13u1.
References
phabricator.wikimedia.org/T422085
nvd.nist.gov/vuln/detail/CVE-2026-58024
github.com/advisories/GHSA-5mf7-4fq5-g3gp
security-tracker.debian.org/tracker/CVE-2026-58024
ubuntu.com/security/CVE-2026-58024
cve.org/CVERecord?id=CVE-2026-58024
gerrit.wikimedia.org/r/c/mediawiki/core/+/1268588