CVE-2026-58031
Last modified
CVE-2026-58031 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Special.Apisandbox/ApiSandboxLayout.Js. This issue affects MediaWiki: from 1.46.0-rc.0 before 1.46.0.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Special.Apisandbox/ApiSandboxLayout.Js. This issue affects MediaWiki: from 1.46.0-rc.0 before 1.46.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Mediawiki | Mediawiki | 1.46.0 | Rc0 |
References
- https://phabricator.wikimedia.org/T426889Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Related CVEs from 2026
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- CVE-2026-58028Improper Neutralization of Input During Web Page Generation …5.4
- CVE-2026-58029Vulnerability in Wikimedia Foundation MediaWiki. This vuln…6.5
- CVE-2026-5803A security flaw has been discovered in bigsk1 openai-realtim…6.3
- CVE-2026-58030Improper Neutralization of Input During Web Page Generation …6.1
- CVE-2026-58032Improper Neutralization of Input During Web Page Generation …6.1
- CVE-2026-58033Exposure of Sensitive Information to an Unauthorized Actor v…6.5
- CVE-2026-58034Improper Neutralization of Input During Web Page Generation …4.8
- CVE-2026-58035Improper Neutralization of Input During Web Page Generation …4.8
- CVE-2026-58036Exposure of Sensitive Information to an Unauthorized Actor v…7.5
- CVE-2026-58037Improper Neutralization of Input During Web Page Generation …6.1
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