CVE-2018-18678

Name: CVE-2018-18678
Creator: NVD / NIST
Published: 2019-10-30T18:15:12.533+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2018-18678 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.13%

62.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Sir	Gnuboard	< 5.3.2.0

References

https://github.com/gnuboard/gnuboard5/commit/a45241f4bc46aee1ab2cc0749f6444b043681edf#diff-d87f2c71fb4fe131465ba1ff0a5d573dPatch, Third Party Advisory
https://github.com/gnuboard/gnuboard5/compare/15b2e73...2549172Patch, Release Notes, 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-d87f2c71fb4fe131465ba1ff0a5d573dPatch, Third Party Advisory
https://github.com/gnuboard/gnuboard5/compare/15b2e73...2549172Patch, Release Notes, Third Party Advisory
https://github.com/gnuboard/gnuboard5/releases/tag/5.3.2.0Release Notes, Third Party Advisory

Timeline

Published: Oct 30, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-18678?

How severe is CVE-2018-18678?

CVE-2018-18678 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2018-18678?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-18678?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST