Description
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.
References (2)
Core 2
Core References
Exploit, Third Party Advisory
https://creeperkirby.notion.site/Gnboard5-5-6-15-reflected-XSS-25c4fe7db8cf80efa20fc2ebefcfe61e?source=copy_link
Scores
CVSS v3
6.1
EPSS
0.0004
EPSS Percentile
12.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (1)
sir/gnuboard
5.6.15
Published
Oct 23, 2025
Tracked Since
Feb 18, 2026