CVE-2018-18669
GNUBOARD5 5.3.1.9 has XSS that allows remote attackers to inject arbitrary web script or HTML via the "board title contents" parameter, aka the adm/board_form_update.php bo_subject parameter.
Does this matter?
Lower severity and a low EPSS score (1.52%). Track it; it rarely justifies an emergency change on its own.
Description
GNUBOARD5 5.3.1.9 has XSS that allows remote attackers to inject arbitrary web script or HTML via the "board title contents" parameter, aka the adm/board_form_update.php bo_subject parameter.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.52% probability · 74th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- sir/gnuboard
- Source
- cve@mitre.org
EPSS 1.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/gnuboard/gnuboard5/commit/a45241f4bc46aee1ab2cc0749f6444b043681edf#diff-94ec20582215bda9f55fadcefe68c168Patch, Third Party Advisory
- https://github.com/gnuboard/gnuboard5/compare/15b2e73...2549172Patch, Third Party Advisory
- https://github.com/gnuboard/gnuboard5/releases/tag/5.3.2.0Release Notes, Third Party Advisory
- https://github.com/gnuboard/gnuboard5/commit/a45241f4bc46aee1ab2cc0749f6444b043681edf#diff-94ec20582215bda9f55fadcefe68c168Patch, Third Party Advisory
- https://github.com/gnuboard/gnuboard5/compare/15b2e73...2549172Patch, Third Party Advisory
- https://github.com/gnuboard/gnuboard5/releases/tag/5.3.2.0Release Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.