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CVE-2025-67482— Lua segfault in unpack()

Quick assessment

Affected
Wikimedia Foundation Scribunto
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wikimedia Scribunto是Wikimedia基金会的一个脚本开发工具。 Wikimedia Scribunto和luasandbox存在安全漏洞，该漏洞源于includes/Engines/LuaCommon/lualib/mwInit.Lua和library.C文件存在缺陷。以下产品及版本受到影响：Scribunto 1.39.16之前版本、1.43.6之前版本、1.44.3之前版本、1.45.1之前版本和luasandbox fea2304f8f6ab30314369a612f4f5b1

AI Predicted 5.3 Difficulty: Hard EPSS 0.29% · P22

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-67482

Vulnerability Information
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Vulnerability Title
Lua segfault in unpack()
Source: CVE Program / CVE List V5
Vulnerability Description
Vulnerability in Wikimedia Foundation Scribunto, Wikimedia Foundation luasandbox. This vulnerability is associated with program files includes/Engines/LuaCommon/lualib/mwInit.Lua, library.C. This issue affects Scribunto: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1; luasandbox: from * before fea2304f8f6ab30314369a612f4f5b165e68e95a.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Wikimedia Scribunto 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wikimedia Scribunto是Wikimedia基金会的一个脚本开发工具。 Wikimedia Scribunto和luasandbox存在安全漏洞，该漏洞源于includes/Engines/LuaCommon/lualib/mwInit.Lua和library.C文件存在缺陷。以下产品及版本受到影响：Scribunto 1.39.16之前版本、1.43.6之前版本、1.44.3之前版本、1.45.1之前版本和luasandbox fea2304f8f6ab30314369a612f4f5b1
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Wikimedia Foundation Scribunto * ~ 1.39.16, 1.43.6, 1.44.3, 1.45.1 -
Wikimedia Foundation luasandbox * ~ fea2304f8f6ab30314369a612f4f5b165e68e95a -

II. Public POCs for CVE-2025-67482

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III. Intelligence Information for CVE-2025-67482

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Same Patch Batch · Wikimedia Foundation · 2026-02-03 · 26 CVEs total

CVE-2025-67477 Stored XSS through a system message in Special:ApiSandbox
CVE-2025-67483 Theoretical i18n XSS in mediawiki.page.preview.js when a page has multiple protection leve
CVE-2025-67481 mw.message(…).parse() doesn't output safe HTML, but it's being used as if it does
CVE-2025-67484 Action API xslt option allows JavaScript execution by administrators who are not interface
CVE-2025-61655 Stored XSS through system messages in VisualEditor
CVE-2025-61658 Special:GlobalContributions shows edits on wikis the viewer doesn't have access to
CVE-2025-61656 XSS when pasting into VE
CVE-2025-61651 i18n XSS through Special:CheckUser CheckUser helper
CVE-2025-61654 UserInfoCard: Do permission checking when getting counts of global and local edits, new ar
CVE-2025-61657 Wikimedia Vector 安全漏洞
CVE-2025-61653 Extension:TextExtracts does not check for authorizeRead when returning extracts
CVE-2025-61652 Action API discussiontoolspageinfo does not check for authorizeRead for the page
CVE-2025-67476 Importing leaks IP address of importer via EventStreams
CVE-2025-61647 UserInfoCard: Don't allow access to information about users who are suppressed if you don'
CVE-2025-67475 Stored XSS through edit summaries in MW Core
CVE-2025-67480 list=allrevisions can be used to bypass Extension:Lockdown
CVE-2025-67479 Magic word replacement in legacy parser allows using reserved data attributes through wiki
CVE-2025-67478 Wrong E-Mail address composition for usernames with a comma and Umlauts in it like "Döe, J
CVE-2025-61649 UserInfoCard: Check that performing user has permission to view log entries for number of
CVE-2025-61648 Stored XSS through system messages in CheckUser

Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Scribunto
Same vendor: Wikimedia Foundation

V. Comments for CVE-2025-67482

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