CVE-2020-25814

mediumpriority · track · 24EPSS 0.013 · 71 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.35% (71st) EPSS

CVSS 4.3 · medium

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an <a> tag (or it does not have a href attribute, or it's empty, etc.). The actual result is that the object contains an <a href ="javascript... that executes when clicked.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · OSV

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (9)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
fedoraproject fedora= 33nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
mediawiki mediawiki< 1.31.10nvdUScpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
mediawiki mediawiki1.32.0 → 1.34.4nvdUScpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
Bitnami mediawiki< 1.31.10osvUSpkg:bitnami/mediawiki
Bitnami mediawiki1.32.0 → 1.34.4osvUSpkg:bitnami/mediawiki
Packagist mediawiki/core1.31.0 → 1.31.9osvUSpkg:composer/mediawiki/core
Packagist mediawiki/core1.32.0 → 1.34.3osvUSpkg:composer/mediawiki/core
Packagist mediawiki/core1.35.0-rc.0 → 1.35.0osvUSpkg:composer/mediawiki/core

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-4vr7-m8p8-434hMediaWiki Cross-site Scripting (XSS) vulnerability2022-05-24ghsa · osvUS
In MediaWiki before 1.31.9 and 1.32.x through 1.34.x before 1.34.3, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an <a> tag (or it does not have a href attribute, or it's empty, etc.). The actual result is that the object contains an <a href ="javascript... that executes when clicked.
BIT-mediawiki-2020-258142024-03-06vendor · osvUS
In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an <a> tag (or it does not have a href attribute, or it's empty, etc.). The actual result is that the object contains an <a href ="javascript... that executes when clicked.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2020-09-27modified 2026-06-17

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+53008 more

references (15)

External citations — patches, advisories, analysis.

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