CVE-2026-33400Public exploitNetwork attack vector

Session hijacking via unsanitized payment-method names

Published Mar 24, 2026 · Updated Mar 24, 2026

Stored XSS in Wallos before 4.7.0 allows remote authenticated users to hijack sessions through a renamed payment method. endpoints/payments/rename.php stores the name POST parameter without validate(), and three pages render the value without output escaping. Exploitation requires an authenticated account and a victim page visit; the script can read the non-HttpOnly wallos_login cookie and impersonate that victim.

CVSS severity5.4
Medium
EPSS probability0.19%
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 Wallos before 4.7.0 allows remote authenticated users to hijack sessions through a renamed payment method. endpoints/payments/rename.php stores the name POST parameter without validate(), and three pages render the value without output escaping. Exploitation requires an authenticated account and a victim page visit; the script can read the non-HttpOnly wallos_login cookie and impersonate that victim.

The record

CVE
CVE-2026-33400
Published
Mar 24, 2026
Updated
Mar 24, 2026
Vendor
ellite
Product
Wallos
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 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=< 4.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ellite · Wallosversion=< 4.7.0

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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