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CVE-2018-5263

30
FAUCET Score

CVE-2018-5263 describes a Cross-Site Scripting (XSS) vulnerability in the StackIdeas EasyDiscuss extension (com_easydiscuss) for Joomla! versions prior to 4.0.21. This medium-severity vulnerability (CVSS 5.4) requires user interaction and local privileges, allowing an attacker to inject malicious scripts, potentially leading to information disclosure or defacement. While not actively exploited in the wild (no KEV entry), public exploit code is available via ExploitDB, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.21CPE matchmatch criteria
cpe:2.3:a:stackideas:easydiscuss:*:*:*:*:*:joomla\!:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.58%
Probability of exploitation in next 30 days
EPSS Percentile
73.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-43488 · Jan 10, 2018
This CVE's current EPSS score of 0.0158 is in the 96th percentile among its peer group of 15,224 CVEs.

Social Chatter

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

Remediation

Remediation records are not available for this CVE.

References

stackideas.com / blog/easydiscuss4021-update
Vendor Advisory
exploit-db.com / exploits/43488
ExploitThird Party AdvisoryVDB Entry