CVE-2026-116823

MEDIUM 6.1

YesWiki before 4.7.0 Reflected XSS via BazarField $_REQUEST Fallback

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

YesWiki before 4.7.0 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject JavaScript by supplying query parameters matching missing Bazar field names. Attackers can craft links where BazarField::getValue() falls back to unsanitized $_REQUEST values rendered via Twig |raw templates, performing same-origin authenticated actions in victims' sessions.

CWE	CWE-79
Vendor	yeswiki
Product	yeswiki
Published	Oct 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

YesWiki / yeswiki

0 < 4.7.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/YesWiki/yeswiki/security/advisories/GHSA-hcvp-q8fx-84mc vulncheck.com: https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-reflected-xss-via-bazarfield-request-fallback

Credits

🔍 manus-pi 🔍 manus-use