CVE-2026-96878: the wikimedia foundation mediawiki - cargo extension Cross-site Scripting
CVSS: 6.9v4.0MediumAwaiting analysis
Published 25-09-2026Last modified 29-09-2026
Vulnerability summary
CVE-2026-96878 is a medium (CVSS 6.9) Cross-site Scripting vulnerability in the wikimedia foundation mediawiki - cargo extension. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.7% of scored vulnerabilities.
CVSS score
6.9/10
010
Medium · v4.0 (CVE.org)EPSS score
0.27%
0%100%
Low · Change unavailableKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 25-09-2026PublishedVulnerability first disclosed.
- 29-09-2026Last modifiedVulnerability information updated.
Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Mediawiki - Cargo extension allows Reflected XSS. This issue affects Mediawiki - Cargo extension: through 3.9.4.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.9Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:NSourcesAll 2 agree
- NVDNIST6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/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
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
18%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
26-09-202620-10-2026
EPSS score0.27%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
The wikimedia foundation1 product
- mediawiki - cargo extension≤ 3.9.4
1 vendor · 1 product