CVE-2026-58517 Details
Improper neutralization of input terminators vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension allows Authentication Bypass.

This issue affects Mediawiki - WikiLambda Extension: from * before 1.43.9,1.44.6,1.45.4.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-58517
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.19 Probability of exploitation activity being observed over the next 30 days (9th percentile)
CVSS score for CVE-2026-58517
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
4.3 Medium
Products affected by CVE-2026-58517
Mediawiki 1.43.0
Mediawiki 1.44.0
Mediawiki 1.43.1
Mediawiki 1.45.0
Mediawiki 1.43.2
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
More on DVE scores

CVE-2026-58517 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 87 26.44%
DE 80 24.32%
GB 19 5.78%
FR 17 5.17%
NL 15 4.56%
FI 11 3.34%
PL 10 3.04%
CN 9 2.74%
RU 8 2.43%
CA 7 2.13%

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CVE-2026-58517 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 320 86.25%
Telecommunications 22 5.93%
Education 20 5.39%
Energy/Resources 2 0.54%
Retail 2 0.54%
Government/Politics 2 0.54%
Food Production 2 0.54%
Aerospace/Defense 1 0.27%

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