CVE-2018-0503
$wgRateLimits entry for 'user' overrides 'newbie'
Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.
- Record
CVE-2018-0503- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:N - Weakness
- CWE-269
- Updated
- 2026-11-02
CVE List No score
$wgRateLimits entry for 'user' overrides 'newbie'
Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.
- Record
CVE-2018-0503- Updated
- 2026-11-02
EUVDEUVD-2022-4567 No score
Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.
- Record
EUVD-2022-4567- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mhfv-9h99-jwg7
Mediawiki Improper Privilege Management
Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.
- Record
GHSA-mhfv-9h99-jwg7- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-269
- Updated
- 2026-11-02
OSV
Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.
- Record
CVE-2018-0503- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-0503
Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.
- Record
DEBIAN-CVE-2018-0503- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
Show 6 moreShow less
OSVGHSA-mhfv-9h99-jwg7
Mediawiki Improper Privilege Management
Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.
- Record
GHSA-mhfv-9h99-jwg7- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-269
- Updated
- 2026-11-02
OSVRHSA-2019:3142
Red Hat Security Advisory: OpenShift Container Platform 3.11 mediawiki security update
- Record
RHSA-2019:3142- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVRHSA-2019:3238
Red Hat Security Advisory: OpenShift Container Platform 3.10 mediawiki security update
- Record
RHSA-2019:3238- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVRHSA-2019:3813
Red Hat Security Advisory: OpenShift Container Platform 3.9 mediawiki123 security update
- Record
RHSA-2019:3813- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-0503
Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.
- Record
UBUNTU-CVE-2018-0503- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVMGASA-2018-0433 No score
Updated mediawiki packages fix security vulnerabilities
Updated mediawiki packages fix security vulnerabilities:
'$wgRateLimits' entry for 'user' overrides 'newbie' (CVE-2018-0503).
When a log event is (partially) hidden Special:Redirect/logid can link to the incorrect log and reveal hidden information (CVE-2018-0504).
BotPasswords can bypass CentralAuth's account lock (CVE-2018-0505).
- Record
MGASA-2018-0433- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mediawiki/corePackagist |
1.27.0 up to 1.27.5 | 1.27.5 |
mediawiki/corePackagist |
1.29.0 up to 1.29.3 | 1.29.3 |
mediawiki/corePackagist |
1.30.0 up to 1.30.1 | 1.30.1 |
mediawiki/corePackagist |
1.31.0 up to 1.31.1 | 1.31.1 |
mediawikiDebian:12 |
before 1:1.31.1-1 | 1:1.31.1-1 |
mediawikiDebian:13 |
before 1:1.31.1-1 | 1:1.31.1-1 |
mediawikiDebian:14 |
before 1:1.31.1-1 | 1:1.31.1-1 |
mediawikiDebian:9 From an advisory covering 3 CVEs |
before 1:1.27.5-1~deb9u1, plus listed versions 1:1.27.3-11:1.27.4-11:1.27.4-1~bpo8+11:1.27.4-1~deb9u11:1.27.4-21:1.27.4-3 |
1:1.27.5-1~deb9u1 |
mediawiki/corePackagist |
1.27.0 up to 1.27.5, plus listed versions 1.27.11.27.21.27.31.27.4 |
1.27.5 |
mediawiki/corePackagist |
1.29.0 up to 1.29.3, plus listed versions 1.29.11.29.2 |
1.29.3 |
Show 8 moreShow less
| Package | Affected | Fixed |
|---|---|---|
mediawikiMageia:6 From an advisory covering 3 CVEs |
before 1.27.5-1.mga6 | 1.27.5-1.mga6 |
mediawikiRed Hat:openshift:3.11::el7 From an advisory covering 2 CVEs |
before 0:1.27.7-1.el7 | 0:1.27.7-1.el7 |
mediawiki-docRed Hat:openshift:3.11::el7 From an advisory covering 2 CVEs |
before 0:1.27.7-1.el7 | 0:1.27.7-1.el7 |
mediawikiRed Hat:openshift:3.10::el7 From an advisory covering 3 CVEs |
before 0:1.27.7-1.el7 | 0:1.27.7-1.el7 |
mediawiki-docRed Hat:openshift:3.10::el7 From an advisory covering 3 CVEs |
before 0:1.27.7-1.el7 | 0:1.27.7-1.el7 |
mediawiki123Red Hat:openshift:3.9::el7 From an advisory covering 3 CVEs |
before 0:1.23.17-1.el7 | 0:1.23.17-1.el7 |
mediawiki123-docRed Hat:openshift:3.9::el7 From an advisory covering 3 CVEs |
before 0:1.23.17-1.el7 | 0:1.23.17-1.el7 |
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 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-0503 is a medium vulnerability (CVSS 4.3) in Mediawiki, published September 22, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.56%, the 75th percentile. Fixed in mediawiki/core 1.27.5.
References
lists.wikimedia.org/pipermail/wikitech-l/2018-September/090849.html
securitytracker.com/id/1041695
phabricator.wikimedia.org/T169545
debian.org/security/2018/dsa-4301
access.redhat.com/errata/RHSA-2019:3142
Show 25 moreShow less
nvd.nist.gov/vuln/detail/CVE-2018-0503
github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2018-0503.yaml
security-tracker.debian.org/tracker/CVE-2018-0503
advisories.mageia.org/MGASA-2018-0433.html
bugs.mageia.org/show_bug.cgi?id=23662
bugzilla.redhat.com/show_bug.cgi?id=1634161
security.access.redhat.com/data/csaf/v2/advisories/2019/rhsa-2019_3142.json
cve.org/CVERecord?id=CVE-2018-0503
ubuntu.com/security/CVE-2018-0503