CVE-2025-6236Public exploitNetwork attack vector

Stored XSS via unsanitized PayPal settings

Published Jul 10, 2025 · Updated Jul 10, 2025

Stored XSS in Kiboko Labs Ltd. Hostel before 1.1.5.9 allows remote authenticated users to execute scripts in a viewer’s browser via PayPal settings. The options page saves and redisplays the PayPal email and PayPal PDT token values without sufficient sanitization or output escaping. Administrator access is required, and the flaw is reachable when unfiltered_html is disabled, including multisite deployments; viewing the altered page triggers the stored payload.

CVSS severity4.8
Medium
EPSS probability0.21%
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 Kiboko Labs Ltd. Hostel before 1.1.5.9 allows remote authenticated users to execute scripts in a viewer’s browser via PayPal settings. The options page saves and redisplays the PayPal email and PayPal PDT token values without sufficient sanitization or output escaping. Administrator access is required, and the flaw is reachable when unfiltered_html is disabled, including multisite deployments; viewing the altered page triggers the stored payload.

The record

CVE
CVE-2025-6236
Published
Jul 10, 2025
Updated
Jul 10, 2025
Vendor
Kiboko Labs Ltd.
Product
Hostel
Classifications
CWE-79
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2025Record 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 <1.1.5.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Kiboko Labs Ltd. · Hostelversion=0 <1.1.5.9

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

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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