CVE-2021-45474: fedoraproject fedora Cross-site Scripting
CVSS: 6.1v3.1MediumModified
AliasesUBUNTU-CVE-2021-45474
Published 24-12-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-45474 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in fedoraproject fedora. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62.5% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
1.00%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 24-12-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In MediaWiki through 1.37, the Special:ImportFile URI (aka FileImporter) allows XSS, as demonstrated by the clientUrl parameter.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.00%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
+0.03 pp
From 0.97% on 21-09-2026
21-09-202621-10-2026
EPSS score1.00%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Fedoraproject1 product
- fedoraEOL35
Mediawiki1 product
- mediawiki≤ 1.37
Ubuntu1 product
- mediawikiAll versions (No fix recorded)
3 vendors · 3 products
References
5 links- gerrit.wikimedia.org/r/q/Id1c8910aeac5b452fbabeddab70360765518223eX Refsource MISCREPORTThird Party Advisory