VulnerabilityAnalyzed
CVE-2026-37503
Cross-Site Scripting (XSS) in V2Board thru 1.7.4.
MEDIUM 4.8EPSS 0.19%
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
Description
Cross-Site Scripting (XSS) in V2Board thru 1.7.4. The custom_html field in theme configuration is rendered using Blade unescaped output in public/theme/v2board/dashboard.blade.php. An admin can inject arbitrary JavaScript via the saveThemeConfig API. All site visitors execute the payload, enabling cookie theft, session hijacking, or phishing.
- CVSS 3.1
- 4.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- v2board/v2board
- Source
- cve@mitre.org
References
- https://gist.github.com/sgInnora/1330e1a82caa79906eec55eeff2c99b9Exploit, Third Party Advisory
- https://github.com/v2board/v2boardProduct
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.