What is CVE-2026-116828?

CVE-2026-116828 is a medium-severity vulnerability in Yeswiki, classified under SQL Injection. CVSS score: 4.9/10. Published 2026-10-27.

How severe is CVE-2026-116828?

Medium severity. CVSS v3 base score is 4.9 out of 10.

SQL Injection in Yeswiki

CVE-2026-116828

YesWiki before 4.7.0 contains a sql injection vulnerability in despam.php where the from parameter is escaped but placed in an unquoted INTERVAL position. Authenticated administrators can inject SQL via the from POST parameter to perform blind reads of the database including user password hashes.

Vulnerability class: SQL Injection

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

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/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-89 — SQL Injection

References

github.com/YesWiki/yeswiki/security/advisories/GHSA-w7cp-76pj-w4m5 (vendor-advisory)
www.vulncheck.com/advisories/yeswiki-before-4.7.0-sql-injection-via-despam-php-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-116828?: CVE-2026-116828 is a medium-severity vulnerability in Yeswiki, classified under SQL Injection. CVSS score: 4.9/10. Published 2026-10-27.
How severe is CVE-2026-116828?: Medium severity. CVSS v3 base score is 4.9 out of 10.