CVE-2018-18676 json
GNUBOARD5 5.3.1.9 has XSS that allows remote attackers to inject arbitrary web script or HTML via the "mobile board tail contents" paramete…
published 2019-07-23 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10392
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
GNUBOARD5 5.3.1.9 has XSS that allows remote attackers to inject arbitrary web script or HTML via the "mobile board tail contents" parameter, aka the adm/board_form_update.php bo_mobile_content_tail parameter.
Patch / fix
Exploit prediction
1.55% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/gnuboard/gnuboard5/commit/a45241f4bc46aee1ab2cc0749f6444b043681edf#diff-653a2b5a93ed2ca9b8c809ba723638c1
patch, third-party-advisory
-
github.com
/gnuboard/gnuboard5/compare/15b2e73...2549172
patch, third-party-advisory
-
github.com
/gnuboard/gnuboard5/releases/tag/5.3.2.0
release-notes, third-party-advisory
Sources
- CVE List CVE-2018-18676
- NVD CVE-2018-18676
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.