XSS in Sir Gnuboard
CVE-2025-60859
Cross Site Scripting (XSS) vulnerability in Gnuboard 5.6.15 allows authenticated attackers to execute arbitrary code via crafted c_id parameter in bbs/view_comment.php.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Sir Gnuboard — versions 5.6.15
Weakness classification (CWE)
References
- creeperkirby.notion.site/Gnboard5-5-6-15-reflected-XSS-25c4fe7db8cf80efa20fc2eb… (Exploit, Third Party Advisory)
- github.com/gnuboard/gnuboard5/commit/002e43e5fb84b465357b445772c881e196e100d3 (Patch)
Frequently asked questions
- What is CVE-2025-60859?
- CVE-2025-60859 is a medium-severity vulnerability in Sir Gnuboard, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-10-23.
- How severe is CVE-2025-60859?
- Medium severity. CVSS v3 base score is 6.1 out of 10.