What is CVE-2020-5302?

CVE-2020-5302 is a high-severity vulnerability in Examknow Mh-Wikibot, classified under Improper Access Control. CVSS score: 8.2/10. Published 2020-04-07.

How severe is CVE-2020-5302?

High severity. CVSS v3 base score is 8.2 out of 10.

Privilege escalation in Examknow Mh-Wikibot

CVE-2020-5302

MH-WikiBot (an IRC Bot for interacting with the Miraheze API), had a bug that allowed any unprivileged user to access the steward commands on the IRC interface by impersonating the Nickname used by a privileged user as no check was made to see if they were logged in. The issue has been fixed in commit 23d9d5b0a59667a5d6816fdabb960b537a5f9ed1.

Published 2020-04-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.1th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Examknow Mh-Wikibot — versions < commit 23d9d5b0a59667a5d6816fdabb960b537a5f9ed1
Mh-Wikibot Project

Weakness classification (CWE)

References

github.com/examknow/MH-WikiBot/security/advisories/GHSA-7hf3-wvp8-34r9 (Third Party Advisory)
github.com/examknow/MH-WikiBot/compare/2eac90d...1a62da1

Frequently asked questions

What is CVE-2020-5302?: CVE-2020-5302 is a high-severity vulnerability in Examknow Mh-Wikibot, classified under Improper Access Control. CVSS score: 8.2/10. Published 2020-04-07.
How severe is CVE-2020-5302?: High severity. CVSS v3 base score is 8.2 out of 10.