CVE-2020-25814: fedoraproject fedora Cross-site Scripting
Vulnerability summary
CVE-2020-25814 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in fedoraproject fedora. EPSS estimates a 1.35% chance of exploitation in the next 30 days, higher than 71.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3Timeline
- 27-09-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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 metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
1.35%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
0.00 pp
From 1.35% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- mediawiki< 1:1.35.0-1
Fedoraproject1 product
- fedoraEOL33
Mediawiki1 product
- mediawiki< 1.31.10 | ≥ 1.32.0, < 1.34.4
Ubuntu1 product
- mediawikiAll versions (No fix recorded)
4 vendors · 4 products
References
9 links- lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.htmlX Refsource CONFIRMREPORTMailing ListRelease NotesVendor Advisory
- lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.htmlX Refsource MISCREPORTMailing ListRelease NotesVendor Advisory
