Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-15580

21
FAUCET Score

CVE-2018-15580 describes a Cross-Site Scripting (XSS) vulnerability in the adm/contentformupdate.php component of gnuboard5 versions prior to 5.3.1.6. This flaw allows remote attackers to inject arbitrary web scripts or HTML, impacting the integrity and potentially the confidentiality of user sessions. Rated as MEDIUM with a CVSS score of 6.1, exploitation requires user interaction (UI:R) but can be executed with low attack complexity (AC:L) over the network (AV:N). There is no evidence of active exploitation (KEV: No), nor are there any known public exploit codes like Metasploit or Nuclei modules. The vulnerability has garnered minimal community attention, with no social media discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.3.1.6CPE matchmatch criteria
cpe:2.3:a:sir:gnuboard:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.08%
Probability of exploitation in next 30 days
EPSS Percentile
61.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0108 is in the 74th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / gnuboard/gnuboard5/commit/b1fc952c7600b825c4b02e2789ddafdea18c8d13
PatchThird Party Advisory