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CVE-2019-18636

19
FAUCET Score

CVE-2019-18636 is a medium-severity cross-site scripting (XSS) vulnerability affecting Jitbit .NET Forum version 8.3.8. An authenticated attacker can inject arbitrary web script or HTML via the gravatar URL parameter, potentially leading to information disclosure or session hijacking. The CVSS score is 5.4, indicating a low attack complexity and requiring user interaction. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
8.3.8CPE matchmatch criteria
cpe:2.3:a:jitbit:.net_forum:8.3.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 79th 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

reallinkers.github.io / CVE-2019-18636
ExploitThird Party Advisory
jitbit.com / asp-net-forum/versionhistory
Release NotesVendor Advisory