CVE-2023-39518Network attack vector

Stored XSS via unencoded profile fields

Published Aug 8, 2023 · Updated Oct 3, 2024

Stored XSS in fobybus Social Media Skeleton 1.0.0 through 1.0.2 allows remote authenticated users to run scripts in visitors' browsers. The signup.php and administrative account handlers pass POST fields toward storage without HTML encoding, and profile.php or home.php later renders the stored data as markup. An account and a later visit to the poisoned profile or home page are required; exploitation can read or alter data available to the victim's browser context.

CVSS severity5.4
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in fobybus Social Media Skeleton 1.0.0 through 1.0.2 allows remote authenticated users to run scripts in visitors' browsers. The signup.php and administrative account handlers pass POST fields toward storage without HTML encoding, and profile.php or home.php later renders the stored data as markup. An account and a later visit to the poisoned profile or home page are required; exploitation can read or alter data available to the victim's browser context.

The record

CVE
CVE-2023-39518
Published
Aug 8, 2023
Updated
Oct 3, 2024
Vendor
fobybus
Product
Social Media Skeleton
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.0.0, < 1.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

fobybus · Social Media Skeletonversion=>= 1.0.0, < 1.0.3

Published CVSS scores

5.4GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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