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CVE-2023-29141: X-Forwarded-For header allows brute-forcing autoblocked IP addresses

critical Affects mediawiki/core. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

X-Forwarded-For header allows brute-forcing autoblocked IP addresses

Package
mediawiki/core Composer
Affected versions
>=1.39.0 and <1.39.3 or >=1.38.0 and <1.38.6 or <1.35.10
Fixed in
1.39.3, 1.38.6, 1.35.10
Severity
critical  CVSS 9.8
Exploitation
not on CISA KEV · EPSS 1% (68.0th percentile)
Published
2023-03-31
Source
osv.dev

References

CWE-444
NVD recordmediawiki/core advisories

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composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden deps composer.lock

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