What is CVE-2026-116820?

CVE-2026-116820 is a medium-severity vulnerability in Yeswiki, classified under Insertion of Sensitive Information Into Debugging Code. CVSS score: 5.3/10. Published 2026-10-27.

How severe is CVE-2026-116820?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Yeswiki

CVE-2026-116820

YesWiki from 4.6.0 before 4.7.0 contains an information disclosure vulnerability that allows unauthenticated attackers to view assembled SQL queries by adding the showreq parameter. Attackers can append showreq to public Bazar listing API requests to obtain table names, JSON storage paths, ACL filter logic, and collation, aiding targeted SQL injection.

Published 2026-10-27 · last modified 2026-10-27.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Yeswiki

Weakness classification (CWE)

CWE-215 — Insertion of Sensitive Information Into Debugging Code

References

github.com/YesWiki/yeswiki/security/advisories/GHSA-98mc-h829-5hwm (vendor-advisory)
www.vulncheck.com/advisories/yeswiki-from-4.6.0-before-4.7.0-sql-query-disclosu… (third-party-advisory)

Frequently asked questions

What is CVE-2026-116820?: CVE-2026-116820 is a medium-severity vulnerability in Yeswiki, classified under Insertion of Sensitive Information Into Debugging Code. CVSS score: 5.3/10. Published 2026-10-27.
How severe is CVE-2026-116820?: Medium severity. CVSS v3 base score is 5.3 out of 10.