CVE-2012-4380

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.6%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

MediaWiki before 1.18.5, and 1.19.x before 1.19.2 allows remote attackers to bypass GlobalBlocking extension IP address blocking and create an account via unspecified vectors.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
39
EG Risk 39/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation2% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.6%
EPSS %ILE
75th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 19, 2017

Last Modified

June 16, 2026

Advisory Details (6)

Auto-updated Sep 29, 2026
Patch available. Sources: redhat.
redhatMentions a patch (unverified)

853440 – (CVE-2012-4380) CVE-2012-4380 mediawiki: Did not prevent account creation for IP addresses blocked with GlobalBlocking

https://bugzilla.redhat.com/show_bug.cgi?id=853440
genericMentions a patch (unverified)

#686330 - mediawiki: Multiple security issues CVE-2012-4377,CVE-2012-4378,CVE-2012-4379,CVE-2012-4380,CVE-2012-4381,CVE-2012-4382 - Debian Bug report logs

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330
generic

oss-security - CVE Request -- MediaWiki 1.19.2 and 1.18.5 multiple security flaws

http://www.openwall.com/lists/oss-security/2012/08/31/6
generic

oss-security - Re: CVE Request -- MediaWiki 1.19.2 and 1.18.5 multiple security flaws

http://www.openwall.com/lists/oss-security/2012/08/31/10
generic

⚓ T41824 Account creation allowed despite IP blocked with the GlobalBlocking extension

https://phabricator.wikimedia.org/T41824
generic

[MediaWiki-announce] MediaWiki security release: 1.19.2 and 1.18.5 - MediaWiki-announce - lists.wikimedia.org

https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
mediawiki—
  • every version up to 1:1.19.2-1: fixed in 1:1.19.2-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
mediawiki—
  • every version up to 1:1.19.2-1: fixed in 1:1.19.2-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
mediawiki—
  • every version up to 1:1.19.2-1: fixed in 1:1.19.2-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
mediawiki—
  • every version up to 1:1.19.2-1: fixed in 1:1.19.2-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 19× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 150 total refreshes for this CVE.

  1. 2026-10-10 19:54 UTCEPSS rescore
  2. 2026-10-09 20:00 UTCEPSS rescore
  3. 2026-10-08 16:34 UTCEPSS rescore
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  5. 2026-10-07 22:54 UTCOSV refresh
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  10. 2026-09-29 08:31 UTCEG score recompute
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  1. 2026-08-26 14:40 UTCEPSS rescore
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  20. 2026-07-23 01:08 UTCEG score recompute
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  22. 2026-07-22 21:50 UTCEG score recompute
  23. 2026-07-22 14:04 UTCEPSS rescore
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  36. 2026-07-11 16:11 UTCOSV refresh
  37. 2026-07-11 08:22 UTCEPSS rescore
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  74. 2026-06-15 17:44 UTCEPSS rescore
  75. 2026-06-14 23:14 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2012-4380?
CVE-2012-4380 is a high vulnerability published on October 19, 2017. MediaWiki before 1.18.5, and 1.19.x before 1.19.2 allows remote attackers to bypass GlobalBlocking extension IP address blocking and create an account via unspecified vectors.
When was CVE-2012-4380 disclosed?
CVE-2012-4380 was first published on October 19, 2017, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-4380 actively exploited?
CVE-2012-4380 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.6% probability of exploitation in the next 30 days (75th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2012-4380?
CVE-2012-4380 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2012-4380?
A fix for CVE-2012-4380 is available: update to the fixed version the vendor names in its advisory.

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