What is CVE-2026-105224?

CVE-2026-105224 is a medium-severity vulnerability in Yeswiki, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-04.

How severe is CVE-2026-105224?

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

XSS in Yeswiki

CVE-2026-105224

YesWiki before 4.6.7 contains a cross-site scripting vulnerability in the Bazar valeur action that allows page editors to inject script by rendering unescaped HTML fetched from a remote URL. Attackers can point tools/bazar/actions/valeur.php at a controlled server returning BAZ_fiche_titre markup with an img onerror handler, executing script in every viewer's browser.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-04 · last modified 2026-10-05.

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.

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-79 — Cross-site Scripting

References

github.com/YesWiki/yeswiki/security/advisories/GHSA-6rvf-7pwm-6j44 (vendor-advisory)
github.com/YesWiki/yeswiki/commit/22a5260b0381824e01d340ce9457c4adb9e18b23 (patch)
www.vulncheck.com/advisories/yeswiki-before-4.6.7-stored-xss-via-bazar-valeur-a… (third-party-advisory)

Frequently asked questions

What is CVE-2026-105224?: CVE-2026-105224 is a medium-severity vulnerability in Yeswiki, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-04.
How severe is CVE-2026-105224?: Medium severity. CVSS v3 base score is 5.4 out of 10.