What is CVE-2020-29003?

CVE-2020-29003 is a medium-severity vulnerability in MediaWiki, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-11-24.

How severe is CVE-2020-29003?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in MediaWiki

CVE-2020-29003

The PollNY extension for MediaWiki through 1.35 allows XSS via an answer option for a poll question, entered during Special:CreatePoll or Special:UpdatePoll.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (41.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Mediawiki
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2020-29003?: CVE-2020-29003 is a medium-severity vulnerability in MediaWiki, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-11-24.
How severe is CVE-2020-29003?: Medium severity. CVSS v3 base score is 5.4 out of 10.