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Vulnerability details: VCID-krs8-9ssu-rye5
Vulnerability ID VCID-krs8-9ssu-rye5
Aliases CVE-2020-35478
Summary mediawiki: potential XSS via MediaWiki:blanknamespace outputting Block Logs
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
System Score Found at
cvssv3 6.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35478.json
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
epss 0.00397 https://api.first.org/data/v1/epss?cve=CVE-2020-35478
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-35478
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2020-35478
archlinux Medium https://security.archlinux.org/AVG-1371
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35478.json
https://api.first.org/data/v1/epss?cve=CVE-2020-35478
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35478
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/
https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html
https://phabricator.wikimedia.org/T268938
1909234 https://bugzilla.redhat.com/show_bug.cgi?id=1909234
ASA-202101-22 https://security.archlinux.org/ASA-202101-22
AVG-1371 https://security.archlinux.org/AVG-1371
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
CVE-2020-35478 https://nvd.nist.gov/vuln/detail/CVE-2020-35478
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35478.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35478
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35478
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.59758
EPSS Score 0.00397
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T10:16:50.865679+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35478.json 37.0.0