CVE-2018-18678

6.1 mediumEPSS 1.1%

GNUBOARD5 before 5.3.2.0 has XSS that allows remote attackers to inject arbitrary web script or HTML via the "board group extra contents" parameter, aka the adm/boardgroup_form_update.php gr_1~10 parameter.

Severity

CVSS 3.1

6.1 medium

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

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2019-10-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

sir:gnuboard

References

https://github.com/gnuboard/gnuboard5/commit/a45241f4bc46aee1ab2cc0749f6444b043681edf#diff-d87f2c71fb4fe131465ba1ff0a5d573d
https://github.com/gnuboard/gnuboard5/compare/15b2e73...2549172
https://github.com/gnuboard/gnuboard5/releases/tag/5.3.2.0
https://github.com/gnuboard/gnuboard5/commit/a45241f4bc46aee1ab2cc0749f6444b043681edf#diff-d87f2c71fb4fe131465ba1ff0a5d573d
https://github.com/gnuboard/gnuboard5/compare/15b2e73...2549172

Check your stack JSON