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Vulnerability details: VCID-j741-kstk-pqgn
Vulnerability ID VCID-j741-kstk-pqgn
Aliases CVE-2020-25815
GHSA-2f58-vf6g-6p8x
Summary MediaWiki Cross-site Scripting (XSS) vulnerability An issue was discovered in MediaWiki 1.32.x through 1.34.x before 1.34.4. LogEventList::getFiltersDesc is insecurely using message text to build options names for an HTML multi-select field. The relevant code should use escaped() instead of text().
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 6.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25815.json
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
epss 0.00433 https://api.first.org/data/v1/epss?cve=CVE-2020-25815
cvssv3.1 6.1 https://gerrit.wikimedia.org/g/mediawiki/core/+/ec76e14be658187544f07c1a249a047e1a75eaf8/includes/logging/LogEventsList.php#214
generic_textual MODERATE https://gerrit.wikimedia.org/g/mediawiki/core/+/ec76e14be658187544f07c1a249a047e1a75eaf8/includes/logging/LogEventsList.php#214
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-2f58-vf6g-6p8x
cvssv3.1 6.1 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25815.yaml
generic_textual MODERATE https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25815.yaml
cvssv3.1 6.1 https://github.com/wikimedia/mediawiki
generic_textual MODERATE https://github.com/wikimedia/mediawiki
cvssv3.1 6.1 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
generic_textual MODERATE https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
cvssv3.1 6.1 https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
generic_textual MODERATE https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
cvssv3.1 6.1 https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
generic_textual MODERATE https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-25815
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2020-25815
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2020-25815
cvssv3.1 6.1 https://phabricator.wikimedia.org/T256171
generic_textual MODERATE https://phabricator.wikimedia.org/T256171
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25815.json
https://api.first.org/data/v1/epss?cve=CVE-2020-25815
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25815
https://gerrit.wikimedia.org/g/mediawiki/core/+/ec76e14be658187544f07c1a249a047e1a75eaf8/includes/logging/LogEventsList.php#214
https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25815.yaml
https://github.com/wikimedia/mediawiki
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
https://nvd.nist.gov/vuln/detail/CVE-2020-25815
https://phabricator.wikimedia.org/T256171
1903759 https://bugzilla.redhat.com/show_bug.cgi?id=1903759
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:*:*:*:*:*:*:*
GHSA-2f58-vf6g-6p8x https://github.com/advisories/GHSA-2f58-vf6g-6p8x
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-2020-25815.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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://gerrit.wikimedia.org/g/mediawiki/core/+/ec76e14be658187544f07c1a249a047e1a75eaf8/includes/logging/LogEventsList.php#214
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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25815.yaml
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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/wikimedia/mediawiki
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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
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-2020-25815
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-2020-25815
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: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://phabricator.wikimedia.org/T256171
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 0.61825
EPSS Score 0.00433
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:15:28.091013+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-2f58-vf6g-6p8x/GHSA-2f58-vf6g-6p8x.json 37.0.0