CVE-2025-39502Network attack vector

Unauthenticated script injection via unescaped reflected input

Published May 23, 2025 · Updated Apr 28, 2026

Reflected XSS in GoodLayers Goodlayers Hostel 3.1.2 and earlier allows remote attackers to execute scripts via crafted links. The plugin reflects attacker-controlled request input into generated HTML without sufficient sanitization or output escaping; the affected parameter and code locus are undisclosed. Exploitation requires no account, but a user must follow a crafted link or otherwise submit the request, causing the script to run in that user's browser context.

CVSS severity7.1
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in GoodLayers Goodlayers Hostel 3.1.2 and earlier allows remote attackers to execute scripts via crafted links. The plugin reflects attacker-controlled request input into generated HTML without sufficient sanitization or output escaping; the affected parameter and code locus are undisclosed. Exploitation requires no account, but a user must follow a crafted link or otherwise submit the request, causing the script to run in that user's browser context.

The record

CVE
CVE-2025-39502
Published
May 23, 2025
Updated
Apr 28, 2026
Vendor
GoodLayers
Product
Goodlayers Hostel
Classifications
CWE-79, CAPEC-591, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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=0 <=3.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GoodLayers · Goodlayers Hostelversion=0 <=3.1.2

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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