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Fencer Vulns
medium 4.3

CVE-2018-0503 json

$wgRateLimits entry for 'user' overrides 'newbie'

published 2018-10-04 8 y ago modified 2026-06-17 4 mo ago also GHSA-mhfv-9h99-jwg7 , EUVD-2022-4567

cvss
4.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

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'.

Patch / fix

  • packagist mediawiki/core 1.27.5, 1.29.3, 1.30.1, 1.31.1
  • mediawiki mediawiki 1.31.1
  • mediawiki Debian 14, Debian 13, Debian 12 1:1.31.1-1

debian advisories DEBIAN-CVE-2018-0503

  • mediawiki123 openshift 3.9 1.23.17-1.el7
  • mediawiki openshift 3.11, openshift 3.10 1.27.7-1.el7

red hat advisories RHSA-2019:3813RHSA-2019:3238RHSA-2019:3142

  • mediawiki Arch Linux 1.31.1-1

arch linux advisories AVG-765

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-0503 updated cvss 5.3

mediawiki: $wgRateLimits (rate limit / ping limiter) entry for 'user' overrides that for 'newbie'

  • Red Hat OpenShift Container Platform 3.6 mediawiki123 Red Hat OpenShift Container Platform 3.7 mediawiki123
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 mediawiki
    affected: no fix available “Fix deferred”
  • Red Hat OpenShift Container Platform 3.9 mediawiki123 1.23.17-1.el7
    fixed: vendor fix RHSA-2019:3813
  • Red Hat OpenShift Container Platform 3.10 mediawiki 1.27.7-1.el7
    fixed: vendor fix RHSA-2019:3238
  • Red Hat OpenShift Container Platform 3.11 mediawiki 1.27.7-1.el7
    fixed: vendor fix RHSA-2019:3142

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 4.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:P/A:N
GitHub 3.0 4.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist mediawiki/core
>=1.27.0, <1.27.5
>=1.29.0, <1.29.3
>=1.30.0, <1.30.1
>=1.31.0, <1.31.1
1.27.5
1.29.3
1.30.1
1.31.1

Affected products

  • mediawiki mediawiki

Classification

Weakness
  • CWE-269 Improper Privilege Management

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.